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Finding the Fourth Proportional to 71,995.29, 99,352.11 and 39,732.94

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Solution

The fourth proportional to 71,995.29, 99,352.11 and 39,732.94 is: 54,830.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,995.29 : 99,352.11 = 39,732.94 : x
  2. Step 2: Convert to fraction form
    71,995.29/99,352.11 = 39,732.94/x
  3. Step 3: Cross multiply
    71,995.29x = 99,352.11 × 39,732.94
  4. Step 4: Simplify right side
    71,995.29x = 3,947,551,425.50
  5. Step 5: Solve for x
    x = 3,947,551,425.50/71,995.29
  6. Step 6: Final answer
    x = 54,830.69

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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.