Home / 68,712.08-103,082.83-21,326.18

Finding the Fourth Proportional to 68,712.08, 103,082.83 and 21,326.18

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Solution

The fourth proportional to 68,712.08, 103,082.83 and 21,326.18 is: 31,993.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,712.08 : 103,082.83 = 21,326.18 : x
  2. Step 2: Convert to fraction form
    68,712.08/103,082.83 = 21,326.18/x
  3. Step 3: Cross multiply
    68,712.08x = 103,082.83 × 21,326.18
  4. Step 4: Simplify right side
    68,712.08x = 2,198,362,418.76
  5. Step 5: Solve for x
    x = 2,198,362,418.76/68,712.08
  6. Step 6: Final answer
    x = 31,993.83

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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.