Home / 87,177.87-120,274.52-56,980.63

Finding the Fourth Proportional to 87,177.87, 120,274.52 and 56,980.63

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Solution

The fourth proportional to 87,177.87, 120,274.52 and 56,980.63 is: 78,613.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,177.87 : 120,274.52 = 56,980.63 : x
  2. Step 2: Convert to fraction form
    87,177.87/120,274.52 = 56,980.63/x
  3. Step 3: Cross multiply
    87,177.87x = 120,274.52 × 56,980.63
  4. Step 4: Simplify right side
    87,177.87x = 6,853,317,601.10
  5. Step 5: Solve for x
    x = 6,853,317,601.10/87,177.87
  6. Step 6: Final answer
    x = 78,613.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.