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Finding the Fourth Proportional to 66,873.89, 92,287.01 and 40,017.53

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Solution

The fourth proportional to 66,873.89, 92,287.01 and 40,017.53 is: 55,224.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,873.89 : 92,287.01 = 40,017.53 : x
  2. Step 2: Convert to fraction form
    66,873.89/92,287.01 = 40,017.53/x
  3. Step 3: Cross multiply
    66,873.89x = 92,287.01 × 40,017.53
  4. Step 4: Simplify right side
    66,873.89x = 3,693,098,191.29
  5. Step 5: Solve for x
    x = 3,693,098,191.29/66,873.89
  6. Step 6: Final answer
    x = 55,224.81

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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.