Home / 99,793.20-149,471.10-52,991.40

Finding the Fourth Proportional to 99,793.20, 149,471.10 and 52,991.40

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Solution

The fourth proportional to 99,793.20, 149,471.10 and 52,991.40 is: 79,370.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,793.20 : 149,471.10 = 52,991.40 : x
  2. Step 2: Convert to fraction form
    99,793.20/149,471.10 = 52,991.40/x
  3. Step 3: Cross multiply
    99,793.20x = 149,471.10 × 52,991.40
  4. Step 4: Simplify right side
    99,793.20x = 7,920,682,848.54
  5. Step 5: Solve for x
    x = 7,920,682,848.54/99,793.20
  6. Step 6: Final answer
    x = 79,370.97

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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.