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Finding the Fourth Proportional to 52,687.53, 79,031.43 and 21,522.78

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Solution

The fourth proportional to 52,687.53, 79,031.43 and 21,522.78 is: 32,284.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,687.53 : 79,031.43 = 21,522.78 : x
  2. Step 2: Convert to fraction form
    52,687.53/79,031.43 = 21,522.78/x
  3. Step 3: Cross multiply
    52,687.53x = 79,031.43 × 21,522.78
  4. Step 4: Simplify right side
    52,687.53x = 1,700,976,080.98
  5. Step 5: Solve for x
    x = 1,700,976,080.98/52,687.53
  6. Step 6: Final answer
    x = 32,284.23

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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.