Home / 81,399.44-112,332.34-45,589.20

Finding the Fourth Proportional to 81,399.44, 112,332.34 and 45,589.20

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Solution

The fourth proportional to 81,399.44, 112,332.34 and 45,589.20 is: 62,913.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,399.44 : 112,332.34 = 45,589.20 : x
  2. Step 2: Convert to fraction form
    81,399.44/112,332.34 = 45,589.20/x
  3. Step 3: Cross multiply
    81,399.44x = 112,332.34 × 45,589.20
  4. Step 4: Simplify right side
    81,399.44x = 5,121,141,514.73
  5. Step 5: Solve for x
    x = 5,121,141,514.73/81,399.44
  6. Step 6: Final answer
    x = 62,913.72

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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.