Home / 91,719.66-137,618.49-50,118.06

Finding the Fourth Proportional to 91,719.66, 137,618.49 and 50,118.06

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Solution

The fourth proportional to 91,719.66, 137,618.49 and 50,118.06 is: 75,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,719.66 : 137,618.49 = 50,118.06 : x
  2. Step 2: Convert to fraction form
    91,719.66/137,618.49 = 50,118.06/x
  3. Step 3: Cross multiply
    91,719.66x = 137,618.49 × 50,118.06
  4. Step 4: Simplify right side
    91,719.66x = 6,897,171,738.93
  5. Step 5: Solve for x
    x = 6,897,171,738.93/91,719.66
  6. Step 6: Final answer
    x = 75,198.40

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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.