Home / 87,656.10-131,570.55-43,332.90

Finding the Fourth Proportional to 87,656.10, 131,570.55 and 43,332.90

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Solution

The fourth proportional to 87,656.10, 131,570.55 and 43,332.90 is: 65,042.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,656.10 : 131,570.55 = 43,332.90 : x
  2. Step 2: Convert to fraction form
    87,656.10/131,570.55 = 43,332.90/x
  3. Step 3: Cross multiply
    87,656.10x = 131,570.55 × 43,332.90
  4. Step 4: Simplify right side
    87,656.10x = 5,701,333,486.10
  5. Step 5: Solve for x
    x = 5,701,333,486.10/87,656.10
  6. Step 6: Final answer
    x = 65,042.06

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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.