Home / 87,115.20-130,690.40-34,526.56

Finding the Fourth Proportional to 87,115.20, 130,690.40 and 34,526.56

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Solution

The fourth proportional to 87,115.20, 130,690.40 and 34,526.56 is: 51,796.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,115.20 : 130,690.40 = 34,526.56 : x
  2. Step 2: Convert to fraction form
    87,115.20/130,690.40 = 34,526.56/x
  3. Step 3: Cross multiply
    87,115.20x = 130,690.40 × 34,526.56
  4. Step 4: Simplify right side
    87,115.20x = 4,512,289,937.02
  5. Step 5: Solve for x
    x = 4,512,289,937.02/87,115.20
  6. Step 6: Final answer
    x = 51,796.82

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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.