Home / 68,621.40-102,932.10-67,965.30

Finding the Fourth Proportional to 68,621.40, 102,932.10 and 67,965.30

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Solution

The fourth proportional to 68,621.40, 102,932.10 and 67,965.30 is: 101,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,621.40 : 102,932.10 = 67,965.30 : x
  2. Step 2: Convert to fraction form
    68,621.40/102,932.10 = 67,965.30/x
  3. Step 3: Cross multiply
    68,621.40x = 102,932.10 × 67,965.30
  4. Step 4: Simplify right side
    68,621.40x = 6,995,811,056.13
  5. Step 5: Solve for x
    x = 6,995,811,056.13/68,621.40
  6. Step 6: Final answer
    x = 101,947.95

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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.