Home / 90,687.62-125,159.04-54,876.85

Finding the Fourth Proportional to 90,687.62, 125,159.04 and 54,876.85

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Solution

The fourth proportional to 90,687.62, 125,159.04 and 54,876.85 is: 75,736.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,687.62 : 125,159.04 = 54,876.85 : x
  2. Step 2: Convert to fraction form
    90,687.62/125,159.04 = 54,876.85/x
  3. Step 3: Cross multiply
    90,687.62x = 125,159.04 × 54,876.85
  4. Step 4: Simplify right side
    90,687.62x = 6,868,333,864.22
  5. Step 5: Solve for x
    x = 6,868,333,864.22/90,687.62
  6. Step 6: Final answer
    x = 75,736.18

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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.