Home / 91,790.60-137,670-25,214.88

Finding the Fourth Proportional to 91,790.60, 137,670 and 25,214.88

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Solution

The fourth proportional to 91,790.60, 137,670 and 25,214.88 is: 37,817.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,790.60 : 137,670 = 25,214.88 : x
  2. Step 2: Convert to fraction form
    91,790.60/137,670 = 25,214.88/x
  3. Step 3: Cross multiply
    91,790.60x = 137,670 × 25,214.88
  4. Step 4: Simplify right side
    91,790.60x = 3,471,332,529.60
  5. Step 5: Solve for x
    x = 3,471,332,529.60/91,790.60
  6. Step 6: Final answer
    x = 37,817.95

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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.