Home / 77,329.47-115,961.40-27,422.13

Finding the Fourth Proportional to 77,329.47, 115,961.40 and 27,422.13

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Solution

The fourth proportional to 77,329.47, 115,961.40 and 27,422.13 is: 41,121.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,329.47 : 115,961.40 = 27,422.13 : x
  2. Step 2: Convert to fraction form
    77,329.47/115,961.40 = 27,422.13/x
  3. Step 3: Cross multiply
    77,329.47x = 115,961.40 × 27,422.13
  4. Step 4: Simplify right side
    77,329.47x = 3,179,908,585.78
  5. Step 5: Solve for x
    x = 3,179,908,585.78/77,329.47
  6. Step 6: Final answer
    x = 41,121.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.