Home / 40,160.61-55,428.17-38,388.87

Finding the Fourth Proportional to 40,160.61, 55,428.17 and 38,388.87

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Solution

The fourth proportional to 40,160.61, 55,428.17 and 38,388.87 is: 52,982.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,160.61 : 55,428.17 = 38,388.87 : x
  2. Step 2: Convert to fraction form
    40,160.61/55,428.17 = 38,388.87/x
  3. Step 3: Cross multiply
    40,160.61x = 55,428.17 × 38,388.87
  4. Step 4: Simplify right side
    40,160.61x = 2,127,824,620.52
  5. Step 5: Solve for x
    x = 2,127,824,620.52/40,160.61
  6. Step 6: Final answer
    x = 52,982.88

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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.