Home / 68,219.28-102,328.92-20,832.46

Finding the Fourth Proportional to 68,219.28, 102,328.92 and 20,832.46

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Solution

The fourth proportional to 68,219.28, 102,328.92 and 20,832.46 is: 31,248.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,219.28 : 102,328.92 = 20,832.46 : x
  2. Step 2: Convert to fraction form
    68,219.28/102,328.92 = 20,832.46/x
  3. Step 3: Cross multiply
    68,219.28x = 102,328.92 × 20,832.46
  4. Step 4: Simplify right side
    68,219.28x = 2,131,762,876.92
  5. Step 5: Solve for x
    x = 2,131,762,876.92/68,219.28
  6. Step 6: Final answer
    x = 31,248.69

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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.