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Finding the Fourth Proportional to 65,872.04, 98,797.78 and 21,488.95

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Solution

The fourth proportional to 65,872.04, 98,797.78 and 21,488.95 is: 32,230.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,872.04 : 98,797.78 = 21,488.95 : x
  2. Step 2: Convert to fraction form
    65,872.04/98,797.78 = 21,488.95/x
  3. Step 3: Cross multiply
    65,872.04x = 98,797.78 × 21,488.95
  4. Step 4: Simplify right side
    65,872.04x = 2,123,060,028.28
  5. Step 5: Solve for x
    x = 2,123,060,028.28/65,872.04
  6. Step 6: Final answer
    x = 32,230.07

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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.