Home / 83,739.64-115,553.94-47,921.44

Finding the Fourth Proportional to 83,739.64, 115,553.94 and 47,921.44

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Solution

The fourth proportional to 83,739.64, 115,553.94 and 47,921.44 is: 66,127.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,739.64 : 115,553.94 = 47,921.44 : x
  2. Step 2: Convert to fraction form
    83,739.64/115,553.94 = 47,921.44/x
  3. Step 3: Cross multiply
    83,739.64x = 115,553.94 × 47,921.44
  4. Step 4: Simplify right side
    83,739.64x = 5,537,511,202.47
  5. Step 5: Solve for x
    x = 5,537,511,202.47/83,739.64
  6. Step 6: Final answer
    x = 66,127.72

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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.