Home / 83,543.24-125,238.06-36,128.68

Finding the Fourth Proportional to 83,543.24, 125,238.06 and 36,128.68

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Solution

The fourth proportional to 83,543.24, 125,238.06 and 36,128.68 is: 54,159.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,543.24 : 125,238.06 = 36,128.68 : x
  2. Step 2: Convert to fraction form
    83,543.24/125,238.06 = 36,128.68/x
  3. Step 3: Cross multiply
    83,543.24x = 125,238.06 × 36,128.68
  4. Step 4: Simplify right side
    83,543.24x = 4,524,685,793.56
  5. Step 5: Solve for x
    x = 4,524,685,793.56/83,543.24
  6. Step 6: Final answer
    x = 54,159.81

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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.