Home / 87,641.10-131,548.05-43,317.90

Finding the Fourth Proportional to 87,641.10, 131,548.05 and 43,317.90

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Solution

The fourth proportional to 87,641.10, 131,548.05 and 43,317.90 is: 65,019.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,641.10 : 131,548.05 = 43,317.90 : x
  2. Step 2: Convert to fraction form
    87,641.10/131,548.05 = 43,317.90/x
  3. Step 3: Cross multiply
    87,641.10x = 131,548.05 × 43,317.90
  4. Step 4: Simplify right side
    87,641.10x = 5,698,385,275.10
  5. Step 5: Solve for x
    x = 5,698,385,275.10/87,641.10
  6. Step 6: Final answer
    x = 65,019.55

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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.