Home / 87,569.35-131,372.48-28,400.41

Finding the Fourth Proportional to 87,569.35, 131,372.48 and 28,400.41

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Solution

The fourth proportional to 87,569.35, 131,372.48 and 28,400.41 is: 42,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,569.35 : 131,372.48 = 28,400.41 : x
  2. Step 2: Convert to fraction form
    87,569.35/131,372.48 = 28,400.41/x
  3. Step 3: Cross multiply
    87,569.35x = 131,372.48 × 28,400.41
  4. Step 4: Simplify right side
    87,569.35x = 3,731,031,824.28
  5. Step 5: Solve for x
    x = 3,731,031,824.28/87,569.35
  6. Step 6: Final answer
    x = 42,606.60

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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.