Home / 66,724.11-92,076.57-39,881.43

Finding the Fourth Proportional to 66,724.11, 92,076.57 and 39,881.43

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Solution

The fourth proportional to 66,724.11, 92,076.57 and 39,881.43 is: 55,034.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,724.11 : 92,076.57 = 39,881.43 : x
  2. Step 2: Convert to fraction form
    66,724.11/92,076.57 = 39,881.43/x
  3. Step 3: Cross multiply
    66,724.11x = 92,076.57 × 39,881.43
  4. Step 4: Simplify right side
    66,724.11x = 3,672,145,281.10
  5. Step 5: Solve for x
    x = 3,672,145,281.10/66,724.11
  6. Step 6: Final answer
    x = 55,034.76

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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.