Home / 54,729.68-81,934.56-49,476.78

Finding the Fourth Proportional to 54,729.68, 81,934.56 and 49,476.78

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Solution

The fourth proportional to 54,729.68, 81,934.56 and 49,476.78 is: 74,070.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,729.68 : 81,934.56 = 49,476.78 : x
  2. Step 2: Convert to fraction form
    54,729.68/81,934.56 = 49,476.78/x
  3. Step 3: Cross multiply
    54,729.68x = 81,934.56 × 49,476.78
  4. Step 4: Simplify right side
    54,729.68x = 4,053,858,199.52
  5. Step 5: Solve for x
    x = 4,053,858,199.52/54,729.68
  6. Step 6: Final answer
    x = 74,070.57

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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.