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Finding the Fourth Proportional to 45,259.53, 67,891.11 and 21,554.88

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Solution

The fourth proportional to 45,259.53, 67,891.11 and 21,554.88 is: 32,333.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,259.53 : 67,891.11 = 21,554.88 : x
  2. Step 2: Convert to fraction form
    45,259.53/67,891.11 = 21,554.88/x
  3. Step 3: Cross multiply
    45,259.53x = 67,891.11 × 21,554.88
  4. Step 4: Simplify right side
    45,259.53x = 1,463,384,729.12
  5. Step 5: Solve for x
    x = 1,463,384,729.12/45,259.53
  6. Step 6: Final answer
    x = 32,333.18

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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.