Home / 83,805.61-115,635.20-47,013.05

Finding the Fourth Proportional to 83,805.61, 115,635.20 and 47,013.05

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Solution

The fourth proportional to 83,805.61, 115,635.20 and 47,013.05 is: 64,868.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,805.61 : 115,635.20 = 47,013.05 : x
  2. Step 2: Convert to fraction form
    83,805.61/115,635.20 = 47,013.05/x
  3. Step 3: Cross multiply
    83,805.61x = 115,635.20 × 47,013.05
  4. Step 4: Simplify right side
    83,805.61x = 5,436,363,439.36
  5. Step 5: Solve for x
    x = 5,436,363,439.36/83,805.61
  6. Step 6: Final answer
    x = 64,868.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.