Home / 80,736.75-121,124.70-25,332.75

Finding the Fourth Proportional to 80,736.75, 121,124.70 and 25,332.75

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Solution

The fourth proportional to 80,736.75, 121,124.70 and 25,332.75 is: 38,005.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,736.75 : 121,124.70 = 25,332.75 : x
  2. Step 2: Convert to fraction form
    80,736.75/121,124.70 = 25,332.75/x
  3. Step 3: Cross multiply
    80,736.75x = 121,124.70 × 25,332.75
  4. Step 4: Simplify right side
    80,736.75x = 3,068,421,743.93
  5. Step 5: Solve for x
    x = 3,068,421,743.93/80,736.75
  6. Step 6: Final answer
    x = 38,005.27

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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.