Home / 81,546.24-112,539-45,249.12

Finding the Fourth Proportional to 81,546.24, 112,539 and 45,249.12

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Solution

The fourth proportional to 81,546.24, 112,539 and 45,249.12 is: 62,446.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,546.24 : 112,539 = 45,249.12 : x
  2. Step 2: Convert to fraction form
    81,546.24/112,539 = 45,249.12/x
  3. Step 3: Cross multiply
    81,546.24x = 112,539 × 45,249.12
  4. Step 4: Simplify right side
    81,546.24x = 5,092,290,715.68
  5. Step 5: Solve for x
    x = 5,092,290,715.68/81,546.24
  6. Step 6: Final answer
    x = 62,446.66

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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.