Home / 54,351.61-74,989.80-31,691.55

Finding the Fourth Proportional to 54,351.61, 74,989.80 and 31,691.55

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Solution

The fourth proportional to 54,351.61, 74,989.80 and 31,691.55 is: 43,725.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,351.61 : 74,989.80 = 31,691.55 : x
  2. Step 2: Convert to fraction form
    54,351.61/74,989.80 = 31,691.55/x
  3. Step 3: Cross multiply
    54,351.61x = 74,989.80 × 31,691.55
  4. Step 4: Simplify right side
    54,351.61x = 2,376,543,277.40
  5. Step 5: Solve for x
    x = 2,376,543,277.40/54,351.61
  6. Step 6: Final answer
    x = 43,725.35

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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.