Home / 80,463.40-120,656.13-47,194.36

Finding the Fourth Proportional to 80,463.40, 120,656.13 and 47,194.36

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Solution

The fourth proportional to 80,463.40, 120,656.13 and 47,194.36 is: 70,768.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,463.40 : 120,656.13 = 47,194.36 : x
  2. Step 2: Convert to fraction form
    80,463.40/120,656.13 = 47,194.36/x
  3. Step 3: Cross multiply
    80,463.40x = 120,656.13 × 47,194.36
  4. Step 4: Simplify right side
    80,463.40x = 5,694,288,835.43
  5. Step 5: Solve for x
    x = 5,694,288,835.43/80,463.40
  6. Step 6: Final answer
    x = 70,768.68

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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.