Home / 83,011.80-124,517.70-47,910.45

Finding the Fourth Proportional to 83,011.80, 124,517.70 and 47,910.45

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Solution

The fourth proportional to 83,011.80, 124,517.70 and 47,910.45 is: 71,865.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,011.80 : 124,517.70 = 47,910.45 : x
  2. Step 2: Convert to fraction form
    83,011.80/124,517.70 = 47,910.45/x
  3. Step 3: Cross multiply
    83,011.80x = 124,517.70 × 47,910.45
  4. Step 4: Simplify right side
    83,011.80x = 5,965,699,039.97
  5. Step 5: Solve for x
    x = 5,965,699,039.97/83,011.80
  6. Step 6: Final answer
    x = 71,865.68

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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.