Home / 58,086.08-87,129.20-38,489.12

Finding the Fourth Proportional to 58,086.08, 87,129.20 and 38,489.12

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Solution

The fourth proportional to 58,086.08, 87,129.20 and 38,489.12 is: 57,733.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,086.08 : 87,129.20 = 38,489.12 : x
  2. Step 2: Convert to fraction form
    58,086.08/87,129.20 = 38,489.12/x
  3. Step 3: Cross multiply
    58,086.08x = 87,129.20 × 38,489.12
  4. Step 4: Simplify right side
    58,086.08x = 3,353,526,234.30
  5. Step 5: Solve for x
    x = 3,353,526,234.30/58,086.08
  6. Step 6: Final answer
    x = 57,733.73

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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.