Home / 80,958.15-111,723.66-45,150.12

Finding the Fourth Proportional to 80,958.15, 111,723.66 and 45,150.12

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Solution

The fourth proportional to 80,958.15, 111,723.66 and 45,150.12 is: 62,307.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,958.15 : 111,723.66 = 45,150.12 : x
  2. Step 2: Convert to fraction form
    80,958.15/111,723.66 = 45,150.12/x
  3. Step 3: Cross multiply
    80,958.15x = 111,723.66 × 45,150.12
  4. Step 4: Simplify right side
    80,958.15x = 5,044,336,655.84
  5. Step 5: Solve for x
    x = 5,044,336,655.84/80,958.15
  6. Step 6: Final answer
    x = 62,307.95

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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.