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Finding the Fourth Proportional to 57,363.92, 86,045.88 and 20,427.92

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Solution

The fourth proportional to 57,363.92, 86,045.88 and 20,427.92 is: 30,641.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,363.92 : 86,045.88 = 20,427.92 : x
  2. Step 2: Convert to fraction form
    57,363.92/86,045.88 = 20,427.92/x
  3. Step 3: Cross multiply
    57,363.92x = 86,045.88 × 20,427.92
  4. Step 4: Simplify right side
    57,363.92x = 1,757,738,352.97
  5. Step 5: Solve for x
    x = 1,757,738,352.97/57,363.92
  6. Step 6: Final answer
    x = 30,641.88

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Similar ratio
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1.5x scale

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.