Home / 83,207.40-124,740.88-38,810.76

Finding the Fourth Proportional to 83,207.40, 124,740.88 and 38,810.76

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Solution

The fourth proportional to 83,207.40, 124,740.88 and 38,810.76 is: 58,183.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,207.40 : 124,740.88 = 38,810.76 : x
  2. Step 2: Convert to fraction form
    83,207.40/124,740.88 = 38,810.76/x
  3. Step 3: Cross multiply
    83,207.40x = 124,740.88 × 38,810.76
  4. Step 4: Simplify right side
    83,207.40x = 4,841,288,355.87
  5. Step 5: Solve for x
    x = 4,841,288,355.87/83,207.40
  6. Step 6: Final answer
    x = 58,183.39

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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.