Home / 80,444.55-110,619.81-69,815.73

Finding the Fourth Proportional to 80,444.55, 110,619.81 and 69,815.73

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Solution

The fourth proportional to 80,444.55, 110,619.81 and 69,815.73 is: 96,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,444.55 : 110,619.81 = 69,815.73 : x
  2. Step 2: Convert to fraction form
    80,444.55/110,619.81 = 69,815.73/x
  3. Step 3: Cross multiply
    80,444.55x = 110,619.81 × 69,815.73
  4. Step 4: Simplify right side
    80,444.55x = 7,723,002,787.61
  5. Step 5: Solve for x
    x = 7,723,002,787.61/80,444.55
  6. Step 6: Final answer
    x = 96,004.05

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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.