Home / 81,340.85-112,249.26-45,530.87

Finding the Fourth Proportional to 81,340.85, 112,249.26 and 45,530.87

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Solution

The fourth proportional to 81,340.85, 112,249.26 and 45,530.87 is: 62,831.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,340.85 : 112,249.26 = 45,530.87 : x
  2. Step 2: Convert to fraction form
    81,340.85/112,249.26 = 45,530.87/x
  3. Step 3: Cross multiply
    81,340.85x = 112,249.26 × 45,530.87
  4. Step 4: Simplify right side
    81,340.85x = 5,110,805,903.41
  5. Step 5: Solve for x
    x = 5,110,805,903.41/81,340.85
  6. Step 6: Final answer
    x = 62,831.97

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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.