Home / 87,125.06-120,214.25-56,954.59

Finding the Fourth Proportional to 87,125.06, 120,214.25 and 56,954.59

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Solution

The fourth proportional to 87,125.06, 120,214.25 and 56,954.59 is: 78,585.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,125.06 : 120,214.25 = 56,954.59 : x
  2. Step 2: Convert to fraction form
    87,125.06/120,214.25 = 56,954.59/x
  3. Step 3: Cross multiply
    87,125.06x = 120,214.25 × 56,954.59
  4. Step 4: Simplify right side
    87,125.06x = 6,846,753,320.91
  5. Step 5: Solve for x
    x = 6,846,753,320.91/87,125.06
  6. Step 6: Final answer
    x = 78,585.35

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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.