Home / 71,428.38-107,146.89-29,861.34

Finding the Fourth Proportional to 71,428.38, 107,146.89 and 29,861.34

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Solution

The fourth proportional to 71,428.38, 107,146.89 and 29,861.34 is: 44,793.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,428.38 : 107,146.89 = 29,861.34 : x
  2. Step 2: Convert to fraction form
    71,428.38/107,146.89 = 29,861.34/x
  3. Step 3: Cross multiply
    71,428.38x = 107,146.89 × 29,861.34
  4. Step 4: Simplify right side
    71,428.38x = 3,199,549,712.23
  5. Step 5: Solve for x
    x = 3,199,549,712.23/71,428.38
  6. Step 6: Final answer
    x = 44,793.82

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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.