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Finding the Fourth Proportional to 71,358.38, 98,474.56 and 39,529.34

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Solution

The fourth proportional to 71,358.38, 98,474.56 and 39,529.34 is: 54,550.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,358.38 : 98,474.56 = 39,529.34 : x
  2. Step 2: Convert to fraction form
    71,358.38/98,474.56 = 39,529.34/x
  3. Step 3: Cross multiply
    71,358.38x = 98,474.56 × 39,529.34
  4. Step 4: Simplify right side
    71,358.38x = 3,892,634,363.59
  5. Step 5: Solve for x
    x = 3,892,634,363.59/71,358.38
  6. Step 6: Final answer
    x = 54,550.49

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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.