Home / 68,788.12-102,711.44-61,626.20

Finding the Fourth Proportional to 68,788.12, 102,711.44 and 61,626.20

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Solution

The fourth proportional to 68,788.12, 102,711.44 and 61,626.20 is: 92,017.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,788.12 : 102,711.44 = 61,626.20 : x
  2. Step 2: Convert to fraction form
    68,788.12/102,711.44 = 61,626.20/x
  3. Step 3: Cross multiply
    68,788.12x = 102,711.44 × 61,626.20
  4. Step 4: Simplify right side
    68,788.12x = 6,329,715,743.73
  5. Step 5: Solve for x
    x = 6,329,715,743.73/68,788.12
  6. Step 6: Final answer
    x = 92,017.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.