Home / 87,177.64-120,260.52-56,980.66

Finding the Fourth Proportional to 87,177.64, 120,260.52 and 56,980.66

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Solution

The fourth proportional to 87,177.64, 120,260.52 and 56,980.66 is: 78,604.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,177.64 : 120,260.52 = 56,980.66 : x
  2. Step 2: Convert to fraction form
    87,177.64/120,260.52 = 56,980.66/x
  3. Step 3: Cross multiply
    87,177.64x = 120,260.52 × 56,980.66
  4. Step 4: Simplify right side
    87,177.64x = 6,852,523,801.54
  5. Step 5: Solve for x
    x = 6,852,523,801.54/87,177.64
  6. Step 6: Final answer
    x = 78,604.14

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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.