Home / 80,032.08-120,048.12-45,185.88

Finding the Fourth Proportional to 80,032.08, 120,048.12 and 45,185.88

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Solution

The fourth proportional to 80,032.08, 120,048.12 and 45,185.88 is: 67,778.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,032.08 : 120,048.12 = 45,185.88 : x
  2. Step 2: Convert to fraction form
    80,032.08/120,048.12 = 45,185.88/x
  3. Step 3: Cross multiply
    80,032.08x = 120,048.12 × 45,185.88
  4. Step 4: Simplify right side
    80,032.08x = 5,424,479,944.55
  5. Step 5: Solve for x
    x = 5,424,479,944.55/80,032.08
  6. Step 6: Final answer
    x = 67,778.82

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1.5x scale

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.