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Finding the Fourth Proportional to 66,939.29, 100,338.88 and 22,550.70

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Solution

The fourth proportional to 66,939.29, 100,338.88 and 22,550.70 is: 33,802.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,939.29 : 100,338.88 = 22,550.70 : x
  2. Step 2: Convert to fraction form
    66,939.29/100,338.88 = 22,550.70/x
  3. Step 3: Cross multiply
    66,939.29x = 100,338.88 × 22,550.70
  4. Step 4: Simplify right side
    66,939.29x = 2,262,712,279.97
  5. Step 5: Solve for x
    x = 2,262,712,279.97/66,939.29
  6. Step 6: Final answer
    x = 33,802.46

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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.