Home / 80,786.34-121,184.46-34,042.86

Finding the Fourth Proportional to 80,786.34, 121,184.46 and 34,042.86

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Solution

The fourth proportional to 80,786.34, 121,184.46 and 34,042.86 is: 51,066.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,786.34 : 121,184.46 = 34,042.86 : x
  2. Step 2: Convert to fraction form
    80,786.34/121,184.46 = 34,042.86/x
  3. Step 3: Cross multiply
    80,786.34x = 121,184.46 × 34,042.86
  4. Step 4: Simplify right side
    80,786.34x = 4,125,465,605.96
  5. Step 5: Solve for x
    x = 4,125,465,605.96/80,786.34
  6. Step 6: Final answer
    x = 51,066.38

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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.