Home / 81,400.44-112,338.18-45,589.80

Finding the Fourth Proportional to 81,400.44, 112,338.18 and 45,589.80

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Solution

The fourth proportional to 81,400.44, 112,338.18 and 45,589.80 is: 62,917.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,400.44 : 112,338.18 = 45,589.80 : x
  2. Step 2: Convert to fraction form
    81,400.44/112,338.18 = 45,589.80/x
  3. Step 3: Cross multiply
    81,400.44x = 112,338.18 × 45,589.80
  4. Step 4: Simplify right side
    81,400.44x = 5,121,475,158.56
  5. Step 5: Solve for x
    x = 5,121,475,158.56/81,400.44
  6. Step 6: Final answer
    x = 62,917.05

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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.