Home / 87,798.28-131,391.24-71,818.60

Finding the Fourth Proportional to 87,798.28, 131,391.24 and 71,818.60

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Solution

The fourth proportional to 87,798.28, 131,391.24 and 71,818.60 is: 107,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,798.28 : 131,391.24 = 71,818.60 : x
  2. Step 2: Convert to fraction form
    87,798.28/131,391.24 = 71,818.60/x
  3. Step 3: Cross multiply
    87,798.28x = 131,391.24 × 71,818.60
  4. Step 4: Simplify right side
    87,798.28x = 9,436,334,909.06
  5. Step 5: Solve for x
    x = 9,436,334,909.06/87,798.28
  6. Step 6: Final answer
    x = 107,477.45

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1.5x scale

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.