Home / 91,772.20-137,625.90-32,609.80

Finding the Fourth Proportional to 91,772.20, 137,625.90 and 32,609.80

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Solution

The fourth proportional to 91,772.20, 137,625.90 and 32,609.80 is: 48,903.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,772.20 : 137,625.90 = 32,609.80 : x
  2. Step 2: Convert to fraction form
    91,772.20/137,625.90 = 32,609.80/x
  3. Step 3: Cross multiply
    91,772.20x = 137,625.90 × 32,609.80
  4. Step 4: Simplify right side
    91,772.20x = 4,487,953,073.82
  5. Step 5: Solve for x
    x = 4,487,953,073.82/91,772.20
  6. Step 6: Final answer
    x = 48,903.19

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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.