Home / 68,291.28-102,436.80-26,709.12

Finding the Fourth Proportional to 68,291.28, 102,436.80 and 26,709.12

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Solution

The fourth proportional to 68,291.28, 102,436.80 and 26,709.12 is: 40,063.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,291.28 : 102,436.80 = 26,709.12 : x
  2. Step 2: Convert to fraction form
    68,291.28/102,436.80 = 26,709.12/x
  3. Step 3: Cross multiply
    68,291.28x = 102,436.80 × 26,709.12
  4. Step 4: Simplify right side
    68,291.28x = 2,735,996,783.62
  5. Step 5: Solve for x
    x = 2,735,996,783.62/68,291.28
  6. Step 6: Final answer
    x = 40,063.63

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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.