Home / 80,566.99-120,853.52-30,637.78

Finding the Fourth Proportional to 80,566.99, 120,853.52 and 30,637.78

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Solution

The fourth proportional to 80,566.99, 120,853.52 and 30,637.78 is: 45,957.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,566.99 : 120,853.52 = 30,637.78 : x
  2. Step 2: Convert to fraction form
    80,566.99/120,853.52 = 30,637.78/x
  3. Step 3: Cross multiply
    80,566.99x = 120,853.52 × 30,637.78
  4. Step 4: Simplify right side
    80,566.99x = 3,702,682,800.53
  5. Step 5: Solve for x
    x = 3,702,682,800.53/80,566.99
  6. Step 6: Final answer
    x = 45,957.82

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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.