Home / 83,624.20-125,436.30-21,294.70

Finding the Fourth Proportional to 83,624.20, 125,436.30 and 21,294.70

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Solution

The fourth proportional to 83,624.20, 125,436.30 and 21,294.70 is: 31,942.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,624.20 : 125,436.30 = 21,294.70 : x
  2. Step 2: Convert to fraction form
    83,624.20/125,436.30 = 21,294.70/x
  3. Step 3: Cross multiply
    83,624.20x = 125,436.30 × 21,294.70
  4. Step 4: Simplify right side
    83,624.20x = 2,671,128,377.61
  5. Step 5: Solve for x
    x = 2,671,128,377.61/83,624.20
  6. Step 6: Final answer
    x = 31,942.05

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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.