Home / 68,119.28-102,162.72-21,366.08

Finding the Fourth Proportional to 68,119.28, 102,162.72 and 21,366.08

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Solution

The fourth proportional to 68,119.28, 102,162.72 and 21,366.08 is: 32,044.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,119.28 : 102,162.72 = 21,366.08 : x
  2. Step 2: Convert to fraction form
    68,119.28/102,162.72 = 21,366.08/x
  3. Step 3: Cross multiply
    68,119.28x = 102,162.72 × 21,366.08
  4. Step 4: Simplify right side
    68,119.28x = 2,182,816,848.54
  5. Step 5: Solve for x
    x = 2,182,816,848.54/68,119.28
  6. Step 6: Final answer
    x = 32,044.04

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1.5x scale

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.