Home / 85,239.97-117,605.05-49,422.79

Finding the Fourth Proportional to 85,239.97, 117,605.05 and 49,422.79

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Solution

The fourth proportional to 85,239.97, 117,605.05 and 49,422.79 is: 68,188.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,239.97 : 117,605.05 = 49,422.79 : x
  2. Step 2: Convert to fraction form
    85,239.97/117,605.05 = 49,422.79/x
  3. Step 3: Cross multiply
    85,239.97x = 117,605.05 × 49,422.79
  4. Step 4: Simplify right side
    85,239.97x = 5,812,369,689.09
  5. Step 5: Solve for x
    x = 5,812,369,689.09/85,239.97
  6. Step 6: Final answer
    x = 68,188.31

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1.5x scale

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.