Home / 84,195.79-126,184.32-34,217.72

Finding the Fourth Proportional to 84,195.79, 126,184.32 and 34,217.72

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Solution

The fourth proportional to 84,195.79, 126,184.32 and 34,217.72 is: 51,282.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,195.79 : 126,184.32 = 34,217.72 : x
  2. Step 2: Convert to fraction form
    84,195.79/126,184.32 = 34,217.72/x
  3. Step 3: Cross multiply
    84,195.79x = 126,184.32 × 34,217.72
  4. Step 4: Simplify right side
    84,195.79x = 4,317,739,815.69
  5. Step 5: Solve for x
    x = 4,317,739,815.69/84,195.79
  6. Step 6: Final answer
    x = 51,282.14

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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.