Home / 83,919.96-125,901.60-31,329.84

Finding the Fourth Proportional to 83,919.96, 125,901.60 and 31,329.84

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Solution

The fourth proportional to 83,919.96, 125,901.60 and 31,329.84 is: 47,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,919.96 : 125,901.60 = 31,329.84 : x
  2. Step 2: Convert to fraction form
    83,919.96/125,901.60 = 31,329.84/x
  3. Step 3: Cross multiply
    83,919.96x = 125,901.60 × 31,329.84
  4. Step 4: Simplify right side
    83,919.96x = 3,944,476,983.74
  5. Step 5: Solve for x
    x = 3,944,476,983.74/83,919.96
  6. Step 6: Final answer
    x = 47,002.85

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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.