Home / 87,853.11-131,808.83-28,690.71

Finding the Fourth Proportional to 87,853.11, 131,808.83 and 28,690.71

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Solution

The fourth proportional to 87,853.11, 131,808.83 and 28,690.71 is: 43,045.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,853.11 : 131,808.83 = 28,690.71 : x
  2. Step 2: Convert to fraction form
    87,853.11/131,808.83 = 28,690.71/x
  3. Step 3: Cross multiply
    87,853.11x = 131,808.83 × 28,690.71
  4. Step 4: Simplify right side
    87,853.11x = 3,781,688,773.52
  5. Step 5: Solve for x
    x = 3,781,688,773.52/87,853.11
  6. Step 6: Final answer
    x = 43,045.59

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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.