Home / 83,772.54-115,573.38-47,943.42

Finding the Fourth Proportional to 83,772.54, 115,573.38 and 47,943.42

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Solution

The fourth proportional to 83,772.54, 115,573.38 and 47,943.42 is: 66,143.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,772.54 : 115,573.38 = 47,943.42 : x
  2. Step 2: Convert to fraction form
    83,772.54/115,573.38 = 47,943.42/x
  3. Step 3: Cross multiply
    83,772.54x = 115,573.38 × 47,943.42
  4. Step 4: Simplify right side
    83,772.54x = 5,540,983,098.16
  5. Step 5: Solve for x
    x = 5,540,983,098.16/83,772.54
  6. Step 6: Final answer
    x = 66,143.19

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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.