Home / 68,731.92-103,110.84-21,972.24

Finding the Fourth Proportional to 68,731.92, 103,110.84 and 21,972.24

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Solution

The fourth proportional to 68,731.92, 103,110.84 and 21,972.24 is: 32,962.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,731.92 : 103,110.84 = 21,972.24 : x
  2. Step 2: Convert to fraction form
    68,731.92/103,110.84 = 21,972.24/x
  3. Step 3: Cross multiply
    68,731.92x = 103,110.84 × 21,972.24
  4. Step 4: Simplify right side
    68,731.92x = 2,265,576,123.08
  5. Step 5: Solve for x
    x = 2,265,576,123.08/68,731.92
  6. Step 6: Final answer
    x = 32,962.50

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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.