Home / 51,368.76-70,889.28-28,708.56

Finding the Fourth Proportional to 51,368.76, 70,889.28 and 28,708.56

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Solution

The fourth proportional to 51,368.76, 70,889.28 and 28,708.56 is: 39,618.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,368.76 : 70,889.28 = 28,708.56 : x
  2. Step 2: Convert to fraction form
    51,368.76/70,889.28 = 28,708.56/x
  3. Step 3: Cross multiply
    51,368.76x = 70,889.28 × 28,708.56
  4. Step 4: Simplify right side
    51,368.76x = 2,035,129,148.24
  5. Step 5: Solve for x
    x = 2,035,129,148.24/51,368.76
  6. Step 6: Final answer
    x = 39,618.03

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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.