Home / 83,642.16-115,422.25-45,400.85

Finding the Fourth Proportional to 83,642.16, 115,422.25 and 45,400.85

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Solution

The fourth proportional to 83,642.16, 115,422.25 and 45,400.85 is: 62,651.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,642.16 : 115,422.25 = 45,400.85 : x
  2. Step 2: Convert to fraction form
    83,642.16/115,422.25 = 45,400.85/x
  3. Step 3: Cross multiply
    83,642.16x = 115,422.25 × 45,400.85
  4. Step 4: Simplify right side
    83,642.16x = 5,240,268,086.26
  5. Step 5: Solve for x
    x = 5,240,268,086.26/83,642.16
  6. Step 6: Final answer
    x = 62,651.03

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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.