Home / 83,289.88-124,975.86-38,919.70

Finding the Fourth Proportional to 83,289.88, 124,975.86 and 38,919.70

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Solution

The fourth proportional to 83,289.88, 124,975.86 and 38,919.70 is: 58,398.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,289.88 : 124,975.86 = 38,919.70 : x
  2. Step 2: Convert to fraction form
    83,289.88/124,975.86 = 38,919.70/x
  3. Step 3: Cross multiply
    83,289.88x = 124,975.86 × 38,919.70
  4. Step 4: Simplify right side
    83,289.88x = 4,864,022,978.44
  5. Step 5: Solve for x
    x = 4,864,022,978.44/83,289.88
  6. Step 6: Final answer
    x = 58,398.73

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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.