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Finding the Fourth Proportional to 73,229.12, 101,056 and 39,695.20

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Solution

The fourth proportional to 73,229.12, 101,056 and 39,695.20 is: 54,779.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,229.12 : 101,056 = 39,695.20 : x
  2. Step 2: Convert to fraction form
    73,229.12/101,056 = 39,695.20/x
  3. Step 3: Cross multiply
    73,229.12x = 101,056 × 39,695.20
  4. Step 4: Simplify right side
    73,229.12x = 4,011,438,131.20
  5. Step 5: Solve for x
    x = 4,011,438,131.20/73,229.12
  6. Step 6: Final answer
    x = 54,779.28

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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.