Home / 80,737.58-121,027.32-30,099.56

Finding the Fourth Proportional to 80,737.58, 121,027.32 and 30,099.56

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Solution

The fourth proportional to 80,737.58, 121,027.32 and 30,099.56 is: 45,119.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,737.58 : 121,027.32 = 30,099.56 : x
  2. Step 2: Convert to fraction form
    80,737.58/121,027.32 = 30,099.56/x
  3. Step 3: Cross multiply
    80,737.58x = 121,027.32 × 30,099.56
  4. Step 4: Simplify right side
    80,737.58x = 3,642,868,474.84
  5. Step 5: Solve for x
    x = 3,642,868,474.84/80,737.58
  6. Step 6: Final answer
    x = 45,119.86

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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.