Home / 91,790.83-137,661.21-25,215.13

Finding the Fourth Proportional to 91,790.83, 137,661.21 and 25,215.13

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Solution

The fourth proportional to 91,790.83, 137,661.21 and 25,215.13 is: 37,815.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,790.83 : 137,661.21 = 25,215.13 : x
  2. Step 2: Convert to fraction form
    91,790.83/137,661.21 = 25,215.13/x
  3. Step 3: Cross multiply
    91,790.83x = 137,661.21 × 25,215.13
  4. Step 4: Simplify right side
    91,790.83x = 3,471,145,306.11
  5. Step 5: Solve for x
    x = 3,471,145,306.11/91,790.83
  6. Step 6: Final answer
    x = 37,815.82

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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.