Home / 80,772.04-121,149.42-28,182.52

Finding the Fourth Proportional to 80,772.04, 121,149.42 and 28,182.52

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Solution

The fourth proportional to 80,772.04, 121,149.42 and 28,182.52 is: 42,270.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,772.04 : 121,149.42 = 28,182.52 : x
  2. Step 2: Convert to fraction form
    80,772.04/121,149.42 = 28,182.52/x
  3. Step 3: Cross multiply
    80,772.04x = 121,149.42 × 28,182.52
  4. Step 4: Simplify right side
    80,772.04x = 3,414,295,952.14
  5. Step 5: Solve for x
    x = 3,414,295,952.14/80,772.04
  6. Step 6: Final answer
    x = 42,270.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.