Home / 80,370.30-120,562.03-40,368.72

Finding the Fourth Proportional to 80,370.30, 120,562.03 and 40,368.72

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Solution

The fourth proportional to 80,370.30, 120,562.03 and 40,368.72 is: 60,556.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,370.30 : 120,562.03 = 40,368.72 : x
  2. Step 2: Convert to fraction form
    80,370.30/120,562.03 = 40,368.72/x
  3. Step 3: Cross multiply
    80,370.30x = 120,562.03 × 40,368.72
  4. Step 4: Simplify right side
    80,370.30x = 4,866,934,027.05
  5. Step 5: Solve for x
    x = 4,866,934,027.05/80,370.30
  6. Step 6: Final answer
    x = 60,556.38

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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.