Home / 83,757.13-115,611.77-53,623.61

Finding the Fourth Proportional to 83,757.13, 115,611.77 and 53,623.61

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Solution

The fourth proportional to 83,757.13, 115,611.77 and 53,623.61 is: 74,017.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,757.13 : 115,611.77 = 53,623.61 : x
  2. Step 2: Convert to fraction form
    83,757.13/115,611.77 = 53,623.61/x
  3. Step 3: Cross multiply
    83,757.13x = 115,611.77 × 53,623.61
  4. Step 4: Simplify right side
    83,757.13x = 6,199,520,455.43
  5. Step 5: Solve for x
    x = 6,199,520,455.43/83,757.13
  6. Step 6: Final answer
    x = 74,017.83

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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.