Home / 80,944.76-121,343.18-28,325.54

Finding the Fourth Proportional to 80,944.76, 121,343.18 and 28,325.54

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Solution

The fourth proportional to 80,944.76, 121,343.18 and 28,325.54 is: 42,462.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,944.76 : 121,343.18 = 28,325.54 : x
  2. Step 2: Convert to fraction form
    80,944.76/121,343.18 = 28,325.54/x
  3. Step 3: Cross multiply
    80,944.76x = 121,343.18 × 28,325.54
  4. Step 4: Simplify right side
    80,944.76x = 3,437,111,098.82
  5. Step 5: Solve for x
    x = 3,437,111,098.82/80,944.76
  6. Step 6: Final answer
    x = 42,462.43

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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.