Home / 83,288.10-124,876.79-45,865.80

Finding the Fourth Proportional to 83,288.10, 124,876.79 and 45,865.80

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Solution

The fourth proportional to 83,288.10, 124,876.79 and 45,865.80 is: 68,768.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,288.10 : 124,876.79 = 45,865.80 : x
  2. Step 2: Convert to fraction form
    83,288.10/124,876.79 = 45,865.80/x
  3. Step 3: Cross multiply
    83,288.10x = 124,876.79 × 45,865.80
  4. Step 4: Simplify right side
    83,288.10x = 5,727,573,989.45
  5. Step 5: Solve for x
    x = 5,727,573,989.45/83,288.10
  6. Step 6: Final answer
    x = 68,768.21

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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.