Home / 80,619.62-111,254.65-44,321.90

Finding the Fourth Proportional to 80,619.62, 111,254.65 and 44,321.90

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Solution

The fourth proportional to 80,619.62, 111,254.65 and 44,321.90 is: 61,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,619.62 : 111,254.65 = 44,321.90 : x
  2. Step 2: Convert to fraction form
    80,619.62/111,254.65 = 44,321.90/x
  3. Step 3: Cross multiply
    80,619.62x = 111,254.65 × 44,321.90
  4. Step 4: Simplify right side
    80,619.62x = 4,931,016,804.76
  5. Step 5: Solve for x
    x = 4,931,016,804.76/80,619.62
  6. Step 6: Final answer
    x = 61,163.98

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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.