Home / 91,789.61-137,689.57-25,228.26

Finding the Fourth Proportional to 91,789.61, 137,689.57 and 25,228.26

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Solution

The fourth proportional to 91,789.61, 137,689.57 and 25,228.26 is: 37,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,789.61 : 137,689.57 = 25,228.26 : x
  2. Step 2: Convert to fraction form
    91,789.61/137,689.57 = 25,228.26/x
  3. Step 3: Cross multiply
    91,789.61x = 137,689.57 × 25,228.26
  4. Step 4: Simplify right side
    91,789.61x = 3,473,668,302.78
  5. Step 5: Solve for x
    x = 3,473,668,302.78/91,789.61
  6. Step 6: Final answer
    x = 37,843.81

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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.