Home / 52,679.68-72,691.99-31,170.09

Finding the Fourth Proportional to 52,679.68, 72,691.99 and 31,170.09

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Solution

The fourth proportional to 52,679.68, 72,691.99 and 31,170.09 is: 43,011.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,679.68 : 72,691.99 = 31,170.09 : x
  2. Step 2: Convert to fraction form
    52,679.68/72,691.99 = 31,170.09/x
  3. Step 3: Cross multiply
    52,679.68x = 72,691.99 × 31,170.09
  4. Step 4: Simplify right side
    52,679.68x = 2,265,815,870.58
  5. Step 5: Solve for x
    x = 2,265,815,870.58/52,679.68
  6. Step 6: Final answer
    x = 43,011.19

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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.