Home / 71,389.20-98,515.62-39,557.82

Finding the Fourth Proportional to 71,389.20, 98,515.62 and 39,557.82

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Solution

The fourth proportional to 71,389.20, 98,515.62 and 39,557.82 is: 54,588.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,389.20 : 98,515.62 = 39,557.82 : x
  2. Step 2: Convert to fraction form
    71,389.20/98,515.62 = 39,557.82/x
  3. Step 3: Cross multiply
    71,389.20x = 98,515.62 × 39,557.82
  4. Step 4: Simplify right side
    71,389.20x = 3,897,063,163.15
  5. Step 5: Solve for x
    x = 3,897,063,163.15/71,389.20
  6. Step 6: Final answer
    x = 54,588.97

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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.