Home / 45,185.28-67,778.60-11,908.71

Finding the Fourth Proportional to 45,185.28, 67,778.60 and 11,908.71

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Solution

The fourth proportional to 45,185.28, 67,778.60 and 11,908.71 is: 17,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,185.28 : 67,778.60 = 11,908.71 : x
  2. Step 2: Convert to fraction form
    45,185.28/67,778.60 = 11,908.71/x
  3. Step 3: Cross multiply
    45,185.28x = 67,778.60 × 11,908.71
  4. Step 4: Simplify right side
    45,185.28x = 807,155,691.61
  5. Step 5: Solve for x
    x = 807,155,691.61/45,185.28
  6. Step 6: Final answer
    x = 17,863.24

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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.