Home / 66,436.73-91,684.40-40,959.92

Finding the Fourth Proportional to 66,436.73, 91,684.40 and 40,959.92

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Solution

The fourth proportional to 66,436.73, 91,684.40 and 40,959.92 is: 56,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,436.73 : 91,684.40 = 40,959.92 : x
  2. Step 2: Convert to fraction form
    66,436.73/91,684.40 = 40,959.92/x
  3. Step 3: Cross multiply
    66,436.73x = 91,684.40 × 40,959.92
  4. Step 4: Simplify right side
    66,436.73x = 3,755,386,020.86
  5. Step 5: Solve for x
    x = 3,755,386,020.86/66,436.73
  6. Step 6: Final answer
    x = 56,525.75

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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.