Home / 83,609.26-115,475.82-56,704.96

Finding the Fourth Proportional to 83,609.26, 115,475.82 and 56,704.96

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Solution

The fourth proportional to 83,609.26, 115,475.82 and 56,704.96 is: 78,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,609.26 : 115,475.82 = 56,704.96 : x
  2. Step 2: Convert to fraction form
    83,609.26/115,475.82 = 56,704.96/x
  3. Step 3: Cross multiply
    83,609.26x = 115,475.82 × 56,704.96
  4. Step 4: Simplify right side
    83,609.26x = 6,548,051,754.07
  5. Step 5: Solve for x
    x = 6,548,051,754.07/83,609.26
  6. Step 6: Final answer
    x = 78,317.30

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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.