Home / 80,889.69-121,251.27-30,956.25

Finding the Fourth Proportional to 80,889.69, 121,251.27 and 30,956.25

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Solution

The fourth proportional to 80,889.69, 121,251.27 and 30,956.25 is: 46,402.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,889.69 : 121,251.27 = 30,956.25 : x
  2. Step 2: Convert to fraction form
    80,889.69/121,251.27 = 30,956.25/x
  3. Step 3: Cross multiply
    80,889.69x = 121,251.27 × 30,956.25
  4. Step 4: Simplify right side
    80,889.69x = 3,753,484,626.94
  5. Step 5: Solve for x
    x = 3,753,484,626.94/80,889.69
  6. Step 6: Final answer
    x = 46,402.51

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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.