Home / 80,736.50-121,124.20-25,332.50

Finding the Fourth Proportional to 80,736.50, 121,124.20 and 25,332.50

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Solution

The fourth proportional to 80,736.50, 121,124.20 and 25,332.50 is: 38,004.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,736.50 : 121,124.20 = 25,332.50 : x
  2. Step 2: Convert to fraction form
    80,736.50/121,124.20 = 25,332.50/x
  3. Step 3: Cross multiply
    80,736.50x = 121,124.20 × 25,332.50
  4. Step 4: Simplify right side
    80,736.50x = 3,068,378,796.50
  5. Step 5: Solve for x
    x = 3,068,378,796.50/80,736.50
  6. Step 6: Final answer
    x = 38,004.85

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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.