Home / 87,309.18-130,987.94-34,755.56

Finding the Fourth Proportional to 87,309.18, 130,987.94 and 34,755.56

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Solution

The fourth proportional to 87,309.18, 130,987.94 and 34,755.56 is: 52,142.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,309.18 : 130,987.94 = 34,755.56 : x
  2. Step 2: Convert to fraction form
    87,309.18/130,987.94 = 34,755.56/x
  3. Step 3: Cross multiply
    87,309.18x = 130,987.94 × 34,755.56
  4. Step 4: Simplify right side
    87,309.18x = 4,552,559,207.95
  5. Step 5: Solve for x
    x = 4,552,559,207.95/87,309.18
  6. Step 6: Final answer
    x = 52,142.96

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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.