Home / 91,571.60-137,356.92-29,240.72

Finding the Fourth Proportional to 91,571.60, 137,356.92 and 29,240.72

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Solution

The fourth proportional to 91,571.60, 137,356.92 and 29,240.72 is: 43,860.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,571.60 : 137,356.92 = 29,240.72 : x
  2. Step 2: Convert to fraction form
    91,571.60/137,356.92 = 29,240.72/x
  3. Step 3: Cross multiply
    91,571.60x = 137,356.92 × 29,240.72
  4. Step 4: Simplify right side
    91,571.60x = 4,016,415,237.78
  5. Step 5: Solve for x
    x = 4,016,415,237.78/91,571.60
  6. Step 6: Final answer
    x = 43,860.93

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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.