Home / 83,915.04-125,833.68-31,286.64

Finding the Fourth Proportional to 83,915.04, 125,833.68 and 31,286.64

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Solution

The fourth proportional to 83,915.04, 125,833.68 and 31,286.64 is: 46,915.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,915.04 : 125,833.68 = 31,286.64 : x
  2. Step 2: Convert to fraction form
    83,915.04/125,833.68 = 31,286.64/x
  3. Step 3: Cross multiply
    83,915.04x = 125,833.68 × 31,286.64
  4. Step 4: Simplify right side
    83,915.04x = 3,936,913,046.04
  5. Step 5: Solve for x
    x = 3,936,913,046.04/83,915.04
  6. Step 6: Final answer
    x = 46,915.46

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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.