Home / 67,028.91-92,489.61-38,729.13

Finding the Fourth Proportional to 67,028.91, 92,489.61 and 38,729.13

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Solution

The fourth proportional to 67,028.91, 92,489.61 and 38,729.13 is: 53,440.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,028.91 : 92,489.61 = 38,729.13 : x
  2. Step 2: Convert to fraction form
    67,028.91/92,489.61 = 38,729.13/x
  3. Step 3: Cross multiply
    67,028.91x = 92,489.61 × 38,729.13
  4. Step 4: Simplify right side
    67,028.91x = 3,582,042,129.34
  5. Step 5: Solve for x
    x = 3,582,042,129.34/67,028.91
  6. Step 6: Final answer
    x = 53,440.26

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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.