Home / 86,210.24-129,315.36-23,880.76

Finding the Fourth Proportional to 86,210.24, 129,315.36 and 23,880.76

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Solution

The fourth proportional to 86,210.24, 129,315.36 and 23,880.76 is: 35,821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,210.24 : 129,315.36 = 23,880.76 : x
  2. Step 2: Convert to fraction form
    86,210.24/129,315.36 = 23,880.76/x
  3. Step 3: Cross multiply
    86,210.24x = 129,315.36 × 23,880.76
  4. Step 4: Simplify right side
    86,210.24x = 3,088,149,076.47
  5. Step 5: Solve for x
    x = 3,088,149,076.47/86,210.24
  6. Step 6: Final answer
    x = 35,821.14

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.