Home / 80,617.32-111,319.07-67,258.62

Finding the Fourth Proportional to 80,617.32, 111,319.07 and 67,258.62

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Solution

The fourth proportional to 80,617.32, 111,319.07 and 67,258.62 is: 92,872.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,617.32 : 111,319.07 = 67,258.62 : x
  2. Step 2: Convert to fraction form
    80,617.32/111,319.07 = 67,258.62/x
  3. Step 3: Cross multiply
    80,617.32x = 111,319.07 × 67,258.62
  4. Step 4: Simplify right side
    80,617.32x = 7,487,166,691.59
  5. Step 5: Solve for x
    x = 7,487,166,691.59/80,617.32
  6. Step 6: Final answer
    x = 92,872.93

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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.