Home / 71,395.10-107,092.65-54,806.30

Finding the Fourth Proportional to 71,395.10, 107,092.65 and 54,806.30

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Solution

The fourth proportional to 71,395.10, 107,092.65 and 54,806.30 is: 82,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,395.10 : 107,092.65 = 54,806.30 : x
  2. Step 2: Convert to fraction form
    71,395.10/107,092.65 = 54,806.30/x
  3. Step 3: Cross multiply
    71,395.10x = 107,092.65 × 54,806.30
  4. Step 4: Simplify right side
    71,395.10x = 5,869,351,903.70
  5. Step 5: Solve for x
    x = 5,869,351,903.70/71,395.10
  6. Step 6: Final answer
    x = 82,209.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.