Home / 87,476.12-131,218.24-28,316.44

Finding the Fourth Proportional to 87,476.12, 131,218.24 and 28,316.44

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Solution

The fourth proportional to 87,476.12, 131,218.24 and 28,316.44 is: 42,475.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,476.12 : 131,218.24 = 28,316.44 : x
  2. Step 2: Convert to fraction form
    87,476.12/131,218.24 = 28,316.44/x
  3. Step 3: Cross multiply
    87,476.12x = 131,218.24 × 28,316.44
  4. Step 4: Simplify right side
    87,476.12x = 3,715,633,419.87
  5. Step 5: Solve for x
    x = 3,715,633,419.87/87,476.12
  6. Step 6: Final answer
    x = 42,475.97

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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.