Home / 80,636.32-111,248.64-48,793.60

Finding the Fourth Proportional to 80,636.32, 111,248.64 and 48,793.60

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Solution

The fourth proportional to 80,636.32, 111,248.64 and 48,793.60 is: 67,317.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,636.32 : 111,248.64 = 48,793.60 : x
  2. Step 2: Convert to fraction form
    80,636.32/111,248.64 = 48,793.60/x
  3. Step 3: Cross multiply
    80,636.32x = 111,248.64 × 48,793.60
  4. Step 4: Simplify right side
    80,636.32x = 5,428,221,640.70
  5. Step 5: Solve for x
    x = 5,428,221,640.70/80,636.32
  6. Step 6: Final answer
    x = 67,317.33

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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.