Home / 66,741.26-92,084.73-39,145.78

Finding the Fourth Proportional to 66,741.26, 92,084.73 and 39,145.78

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Solution

The fourth proportional to 66,741.26, 92,084.73 and 39,145.78 is: 54,010.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,741.26 : 92,084.73 = 39,145.78 : x
  2. Step 2: Convert to fraction form
    66,741.26/92,084.73 = 39,145.78/x
  3. Step 3: Cross multiply
    66,741.26x = 92,084.73 × 39,145.78
  4. Step 4: Simplify right side
    66,741.26x = 3,604,728,121.52
  5. Step 5: Solve for x
    x = 3,604,728,121.52/66,741.26
  6. Step 6: Final answer
    x = 54,010.49

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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.