Home / 68,095.28-102,142.92-21,351.80

Finding the Fourth Proportional to 68,095.28, 102,142.92 and 21,351.80

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Solution

The fourth proportional to 68,095.28, 102,142.92 and 21,351.80 is: 32,027.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,095.28 : 102,142.92 = 21,351.80 : x
  2. Step 2: Convert to fraction form
    68,095.28/102,142.92 = 21,351.80/x
  3. Step 3: Cross multiply
    68,095.28x = 102,142.92 × 21,351.80
  4. Step 4: Simplify right side
    68,095.28x = 2,180,935,199.26
  5. Step 5: Solve for x
    x = 2,180,935,199.26/68,095.28
  6. Step 6: Final answer
    x = 32,027.70

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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.