Home / 83,619.24-115,416.68-51,770.04

Finding the Fourth Proportional to 83,619.24, 115,416.68 and 51,770.04

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Solution

The fourth proportional to 83,619.24, 115,416.68 and 51,770.04 is: 71,456.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,619.24 : 115,416.68 = 51,770.04 : x
  2. Step 2: Convert to fraction form
    83,619.24/115,416.68 = 51,770.04/x
  3. Step 3: Cross multiply
    83,619.24x = 115,416.68 × 51,770.04
  4. Step 4: Simplify right side
    83,619.24x = 5,975,125,881.42
  5. Step 5: Solve for x
    x = 5,975,125,881.42/83,619.24
  6. Step 6: Final answer
    x = 71,456.35

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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.