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Finding the Fourth Proportional to 66,880.39, 92,279.78 and 45,373.07

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Solution

The fourth proportional to 66,880.39, 92,279.78 and 45,373.07 is: 62,604.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,880.39 : 92,279.78 = 45,373.07 : x
  2. Step 2: Convert to fraction form
    66,880.39/92,279.78 = 45,373.07/x
  3. Step 3: Cross multiply
    66,880.39x = 92,279.78 × 45,373.07
  4. Step 4: Simplify right side
    66,880.39x = 4,187,016,917.52
  5. Step 5: Solve for x
    x = 4,187,016,917.52/66,880.39
  6. Step 6: Final answer
    x = 62,604.55

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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.