Home / 42,154.53-63,177.29-31,541.28

Finding the Fourth Proportional to 42,154.53, 63,177.29 and 31,541.28

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Solution

The fourth proportional to 42,154.53, 63,177.29 and 31,541.28 is: 47,271.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,154.53 : 63,177.29 = 31,541.28 : x
  2. Step 2: Convert to fraction form
    42,154.53/63,177.29 = 31,541.28/x
  3. Step 3: Cross multiply
    42,154.53x = 63,177.29 × 31,541.28
  4. Step 4: Simplify right side
    42,154.53x = 1,992,692,593.53
  5. Step 5: Solve for x
    x = 1,992,692,593.53/42,154.53
  6. Step 6: Final answer
    x = 47,271.14

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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.