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Finding the Fourth Proportional to 71,323.08, 98,425.82 and 39,494

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Solution

The fourth proportional to 71,323.08, 98,425.82 and 39,494 is: 54,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,323.08 : 98,425.82 = 39,494 : x
  2. Step 2: Convert to fraction form
    71,323.08/98,425.82 = 39,494/x
  3. Step 3: Cross multiply
    71,323.08x = 98,425.82 × 39,494
  4. Step 4: Simplify right side
    71,323.08x = 3,887,229,335.08
  5. Step 5: Solve for x
    x = 3,887,229,335.08/71,323.08
  6. Step 6: Final answer
    x = 54,501.70

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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.