Home / 91,162.90-136,805.49-31,998.73

Finding the Fourth Proportional to 91,162.90, 136,805.49 and 31,998.73

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Solution

The fourth proportional to 91,162.90, 136,805.49 and 31,998.73 is: 48,019.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,162.90 : 136,805.49 = 31,998.73 : x
  2. Step 2: Convert to fraction form
    91,162.90/136,805.49 = 31,998.73/x
  3. Step 3: Cross multiply
    91,162.90x = 136,805.49 × 31,998.73
  4. Step 4: Simplify right side
    91,162.90x = 4,377,601,937.03
  5. Step 5: Solve for x
    x = 4,377,601,937.03/91,162.90
  6. Step 6: Final answer
    x = 48,019.56

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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.