Home / 81,456.02-112,408.22-45,646.73

Finding the Fourth Proportional to 81,456.02, 112,408.22 and 45,646.73

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Solution

The fourth proportional to 81,456.02, 112,408.22 and 45,646.73 is: 62,991.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,456.02 : 112,408.22 = 45,646.73 : x
  2. Step 2: Convert to fraction form
    81,456.02/112,408.22 = 45,646.73/x
  3. Step 3: Cross multiply
    81,456.02x = 112,408.22 × 45,646.73
  4. Step 4: Simplify right side
    81,456.02x = 5,131,067,668.12
  5. Step 5: Solve for x
    x = 5,131,067,668.12/81,456.02
  6. Step 6: Final answer
    x = 62,991.88

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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.