Home / 81,321.38-112,224.06-45,514.70

Finding the Fourth Proportional to 81,321.38, 112,224.06 and 45,514.70

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Solution

The fourth proportional to 81,321.38, 112,224.06 and 45,514.70 is: 62,810.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,321.38 : 112,224.06 = 45,514.70 : x
  2. Step 2: Convert to fraction form
    81,321.38/112,224.06 = 45,514.70/x
  3. Step 3: Cross multiply
    81,321.38x = 112,224.06 × 45,514.70
  4. Step 4: Simplify right side
    81,321.38x = 5,107,843,862.56
  5. Step 5: Solve for x
    x = 5,107,843,862.56/81,321.38
  6. Step 6: Final answer
    x = 62,810.59

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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.