Home / 51,030.54-70,422.53-28,060.76

Finding the Fourth Proportional to 51,030.54, 70,422.53 and 28,060.76

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Solution

The fourth proportional to 51,030.54, 70,422.53 and 28,060.76 is: 38,724.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,030.54 : 70,422.53 = 28,060.76 : x
  2. Step 2: Convert to fraction form
    51,030.54/70,422.53 = 28,060.76/x
  3. Step 3: Cross multiply
    51,030.54x = 70,422.53 × 28,060.76
  4. Step 4: Simplify right side
    51,030.54x = 1,976,109,220.51
  5. Step 5: Solve for x
    x = 1,976,109,220.51/51,030.54
  6. Step 6: Final answer
    x = 38,724.05

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Half scale
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Double scale
Find fourth proportional to 51,031.54, 70,423.91 and 28,061.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.