Home / 87,869.17-131,873.48-45,761.18

Finding the Fourth Proportional to 87,869.17, 131,873.48 and 45,761.18

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Solution

The fourth proportional to 87,869.17, 131,873.48 and 45,761.18 is: 68,678.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,869.17 : 131,873.48 = 45,761.18 : x
  2. Step 2: Convert to fraction form
    87,869.17/131,873.48 = 45,761.18/x
  3. Step 3: Cross multiply
    87,869.17x = 131,873.48 × 45,761.18
  4. Step 4: Simplify right side
    87,869.17x = 6,034,685,826.70
  5. Step 5: Solve for x
    x = 6,034,685,826.70/87,869.17
  6. Step 6: Final answer
    x = 68,678.08

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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.