Home / 87,526.70-130,998.45-77,029.10

Finding the Fourth Proportional to 87,526.70, 130,998.45 and 77,029.10

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Solution

The fourth proportional to 87,526.70, 130,998.45 and 77,029.10 is: 115,287.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,526.70 : 130,998.45 = 77,029.10 : x
  2. Step 2: Convert to fraction form
    87,526.70/130,998.45 = 77,029.10/x
  3. Step 3: Cross multiply
    87,526.70x = 130,998.45 × 77,029.10
  4. Step 4: Simplify right side
    87,526.70x = 10,090,692,704.90
  5. Step 5: Solve for x
    x = 10,090,692,704.90/87,526.70
  6. Step 6: Final answer
    x = 115,287.02

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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.