Home / 91,812.20-137,645.40-50,259.20

Finding the Fourth Proportional to 91,812.20, 137,645.40 and 50,259.20

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Solution

The fourth proportional to 91,812.20, 137,645.40 and 50,259.20 is: 75,348.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,812.20 : 137,645.40 = 50,259.20 : x
  2. Step 2: Convert to fraction form
    91,812.20/137,645.40 = 50,259.20/x
  3. Step 3: Cross multiply
    91,812.20x = 137,645.40 × 50,259.20
  4. Step 4: Simplify right side
    91,812.20x = 6,917,947,687.68
  5. Step 5: Solve for x
    x = 6,917,947,687.68/91,812.20
  6. Step 6: Final answer
    x = 75,348.89

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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.