Home / 90,760.32-136,001.88-38,141.04

Finding the Fourth Proportional to 90,760.32, 136,001.88 and 38,141.04

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Solution

The fourth proportional to 90,760.32, 136,001.88 and 38,141.04 is: 57,153.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,760.32 : 136,001.88 = 38,141.04 : x
  2. Step 2: Convert to fraction form
    90,760.32/136,001.88 = 38,141.04/x
  3. Step 3: Cross multiply
    90,760.32x = 136,001.88 × 38,141.04
  4. Step 4: Simplify right side
    90,760.32x = 5,187,253,145.16
  5. Step 5: Solve for x
    x = 5,187,253,145.16/90,760.32
  6. Step 6: Final answer
    x = 57,153.31

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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.