Home / 80,716.20-111,391.02-44,419.08

Finding the Fourth Proportional to 80,716.20, 111,391.02 and 44,419.08

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Solution

The fourth proportional to 80,716.20, 111,391.02 and 44,419.08 is: 61,299.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,716.20 : 111,391.02 = 44,419.08 : x
  2. Step 2: Convert to fraction form
    80,716.20/111,391.02 = 44,419.08/x
  3. Step 3: Cross multiply
    80,716.20x = 111,391.02 × 44,419.08
  4. Step 4: Simplify right side
    80,716.20x = 4,947,886,628.66
  5. Step 5: Solve for x
    x = 4,947,886,628.66/80,716.20
  6. Step 6: Final answer
    x = 61,299.80

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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.