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Finding the Fourth Proportional to 83,355.66, 115,029.45 and 47,545.56

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Solution

The fourth proportional to 83,355.66, 115,029.45 and 47,545.56 is: 65,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,355.66 : 115,029.45 = 47,545.56 : x
  2. Step 2: Convert to fraction form
    83,355.66/115,029.45 = 47,545.56/x
  3. Step 3: Cross multiply
    83,355.66x = 115,029.45 × 47,545.56
  4. Step 4: Simplify right side
    83,355.66x = 5,469,139,616.74
  5. Step 5: Solve for x
    x = 5,469,139,616.74/83,355.66
  6. Step 6: Final answer
    x = 65,612.10

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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.