Home / 87,387.61-130,998.37-55,708.75

Finding the Fourth Proportional to 87,387.61, 130,998.37 and 55,708.75

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Solution

The fourth proportional to 87,387.61, 130,998.37 and 55,708.75 is: 83,510.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,387.61 : 130,998.37 = 55,708.75 : x
  2. Step 2: Convert to fraction form
    87,387.61/130,998.37 = 55,708.75/x
  3. Step 3: Cross multiply
    87,387.61x = 130,998.37 × 55,708.75
  4. Step 4: Simplify right side
    87,387.61x = 7,297,755,166.19
  5. Step 5: Solve for x
    x = 7,297,755,166.19/87,387.61
  6. Step 6: Final answer
    x = 83,510.19

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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.