Home / 87,588.30-131,400.90-28,419.34

Finding the Fourth Proportional to 87,588.30, 131,400.90 and 28,419.34

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Solution

The fourth proportional to 87,588.30, 131,400.90 and 28,419.34 is: 42,635.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,588.30 : 131,400.90 = 28,419.34 : x
  2. Step 2: Convert to fraction form
    87,588.30/131,400.90 = 28,419.34/x
  3. Step 3: Cross multiply
    87,588.30x = 131,400.90 × 28,419.34
  4. Step 4: Simplify right side
    87,588.30x = 3,734,326,853.41
  5. Step 5: Solve for x
    x = 3,734,326,853.41/87,588.30
  6. Step 6: Final answer
    x = 42,635.00

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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.