Home / 87,526.60-131,448.30-76,640.20

Finding the Fourth Proportional to 87,526.60, 131,448.30 and 76,640.20

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Solution

The fourth proportional to 87,526.60, 131,448.30 and 76,640.20 is: 115,099.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,526.60 : 131,448.30 = 76,640.20 : x
  2. Step 2: Convert to fraction form
    87,526.60/131,448.30 = 76,640.20/x
  3. Step 3: Cross multiply
    87,526.60x = 131,448.30 × 76,640.20
  4. Step 4: Simplify right side
    87,526.60x = 10,074,224,001.66
  5. Step 5: Solve for x
    x = 10,074,224,001.66/87,526.60
  6. Step 6: Final answer
    x = 115,099.00

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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.