Home / 87,854.17-131,687.96-45,692.05

Finding the Fourth Proportional to 87,854.17, 131,687.96 and 45,692.05

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Solution

The fourth proportional to 87,854.17, 131,687.96 and 45,692.05 is: 68,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,854.17 : 131,687.96 = 45,692.05 : x
  2. Step 2: Convert to fraction form
    87,854.17/131,687.96 = 45,692.05/x
  3. Step 3: Cross multiply
    87,854.17x = 131,687.96 × 45,692.05
  4. Step 4: Simplify right side
    87,854.17x = 6,017,092,852.72
  5. Step 5: Solve for x
    x = 6,017,092,852.72/87,854.17
  6. Step 6: Final answer
    x = 68,489.56

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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.