Home / 91,275.20-136,933.20-32,112.80

Finding the Fourth Proportional to 91,275.20, 136,933.20 and 32,112.80

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Solution

The fourth proportional to 91,275.20, 136,933.20 and 32,112.80 is: 48,176.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,275.20 : 136,933.20 = 32,112.80 : x
  2. Step 2: Convert to fraction form
    91,275.20/136,933.20 = 32,112.80/x
  3. Step 3: Cross multiply
    91,275.20x = 136,933.20 × 32,112.80
  4. Step 4: Simplify right side
    91,275.20x = 4,397,308,464.96
  5. Step 5: Solve for x
    x = 4,397,308,464.96/91,275.20
  6. Step 6: Final answer
    x = 48,176.38

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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.