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Finding the Fourth Proportional to 66,805.80, 92,084.94 and 45,288.96

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Solution

The fourth proportional to 66,805.80, 92,084.94 and 45,288.96 is: 62,426.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,805.80 : 92,084.94 = 45,288.96 : x
  2. Step 2: Convert to fraction form
    66,805.80/92,084.94 = 45,288.96/x
  3. Step 3: Cross multiply
    66,805.80x = 92,084.94 × 45,288.96
  4. Step 4: Simplify right side
    66,805.80x = 4,170,431,164.26
  5. Step 5: Solve for x
    x = 4,170,431,164.26/66,805.80
  6. Step 6: Final answer
    x = 62,426.18

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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.