Home / 83,542.58-115,278.10-47,734.91

Finding the Fourth Proportional to 83,542.58, 115,278.10 and 47,734.91

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Solution

The fourth proportional to 83,542.58, 115,278.10 and 47,734.91 is: 65,868.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,542.58 : 115,278.10 = 47,734.91 : x
  2. Step 2: Convert to fraction form
    83,542.58/115,278.10 = 47,734.91/x
  3. Step 3: Cross multiply
    83,542.58x = 115,278.10 × 47,734.91
  4. Step 4: Simplify right side
    83,542.58x = 5,502,789,728.47
  5. Step 5: Solve for x
    x = 5,502,789,728.47/83,542.58
  6. Step 6: Final answer
    x = 65,868.08

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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.