Home / 82,479.92-113,752.08-55,587.11

Finding the Fourth Proportional to 82,479.92, 113,752.08 and 55,587.11

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Solution

The fourth proportional to 82,479.92, 113,752.08 and 55,587.11 is: 76,662.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,479.92 : 113,752.08 = 55,587.11 : x
  2. Step 2: Convert to fraction form
    82,479.92/113,752.08 = 55,587.11/x
  3. Step 3: Cross multiply
    82,479.92x = 113,752.08 × 55,587.11
  4. Step 4: Simplify right side
    82,479.92x = 6,323,148,814.93
  5. Step 5: Solve for x
    x = 6,323,148,814.93/82,479.92
  6. Step 6: Final answer
    x = 76,662.89

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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.