Home / 75,869.20-113,803.80-19,704.70

Finding the Fourth Proportional to 75,869.20, 113,803.80 and 19,704.70

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Solution

The fourth proportional to 75,869.20, 113,803.80 and 19,704.70 is: 29,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,869.20 : 113,803.80 = 19,704.70 : x
  2. Step 2: Convert to fraction form
    75,869.20/113,803.80 = 19,704.70/x
  3. Step 3: Cross multiply
    75,869.20x = 113,803.80 × 19,704.70
  4. Step 4: Simplify right side
    75,869.20x = 2,242,469,737.86
  5. Step 5: Solve for x
    x = 2,242,469,737.86/75,869.20
  6. Step 6: Final answer
    x = 29,557.05

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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.