Home / 91,829.20-137,743.80-25,279.60

Finding the Fourth Proportional to 91,829.20, 137,743.80 and 25,279.60

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Solution

The fourth proportional to 91,829.20, 137,743.80 and 25,279.60 is: 37,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,829.20 : 137,743.80 = 25,279.60 : x
  2. Step 2: Convert to fraction form
    91,829.20/137,743.80 = 25,279.60/x
  3. Step 3: Cross multiply
    91,829.20x = 137,743.80 × 25,279.60
  4. Step 4: Simplify right side
    91,829.20x = 3,482,108,166.48
  5. Step 5: Solve for x
    x = 3,482,108,166.48/91,829.20
  6. Step 6: Final answer
    x = 37,919.40

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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.