Home / 87,406.70-131,208.60-57,882.20

Finding the Fourth Proportional to 87,406.70, 131,208.60 and 57,882.20

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Solution

The fourth proportional to 87,406.70, 131,208.60 and 57,882.20 is: 86,888.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,406.70 : 131,208.60 = 57,882.20 : x
  2. Step 2: Convert to fraction form
    87,406.70/131,208.60 = 57,882.20/x
  3. Step 3: Cross multiply
    87,406.70x = 131,208.60 × 57,882.20
  4. Step 4: Simplify right side
    87,406.70x = 7,594,642,426.92
  5. Step 5: Solve for x
    x = 7,594,642,426.92/87,406.70
  6. Step 6: Final answer
    x = 86,888.56

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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.