Home / 83,109.30-114,590.78-57,637.74

Finding the Fourth Proportional to 83,109.30, 114,590.78 and 57,637.74

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Solution

The fourth proportional to 83,109.30, 114,590.78 and 57,637.74 is: 79,470.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,109.30 : 114,590.78 = 57,637.74 : x
  2. Step 2: Convert to fraction form
    83,109.30/114,590.78 = 57,637.74/x
  3. Step 3: Cross multiply
    83,109.30x = 114,590.78 × 57,637.74
  4. Step 4: Simplify right side
    83,109.30x = 6,604,753,584.04
  5. Step 5: Solve for x
    x = 6,604,753,584.04/83,109.30
  6. Step 6: Final answer
    x = 79,470.69

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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.