Home / 87,842.24-131,715.96-45,618.15

Finding the Fourth Proportional to 87,842.24, 131,715.96 and 45,618.15

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Solution

The fourth proportional to 87,842.24, 131,715.96 and 45,618.15 is: 68,402.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,842.24 : 131,715.96 = 45,618.15 : x
  2. Step 2: Convert to fraction form
    87,842.24/131,715.96 = 45,618.15/x
  3. Step 3: Cross multiply
    87,842.24x = 131,715.96 × 45,618.15
  4. Step 4: Simplify right side
    87,842.24x = 6,008,638,420.67
  5. Step 5: Solve for x
    x = 6,008,638,420.67/87,842.24
  6. Step 6: Final answer
    x = 68,402.61

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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.