Home / 80,898.58-111,613.65-45,081.82

Finding the Fourth Proportional to 80,898.58, 111,613.65 and 45,081.82

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Solution

The fourth proportional to 80,898.58, 111,613.65 and 45,081.82 is: 62,198.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,898.58 : 111,613.65 = 45,081.82 : x
  2. Step 2: Convert to fraction form
    80,898.58/111,613.65 = 45,081.82/x
  3. Step 3: Cross multiply
    80,898.58x = 111,613.65 × 45,081.82
  4. Step 4: Simplify right side
    80,898.58x = 5,031,746,478.84
  5. Step 5: Solve for x
    x = 5,031,746,478.84/80,898.58
  6. Step 6: Final answer
    x = 62,198.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.