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Finding the Fourth Proportional to 56,754.59, 85,172.85 and 21,694.32

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Solution

The fourth proportional to 56,754.59, 85,172.85 and 21,694.32 is: 32,557.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,754.59 : 85,172.85 = 21,694.32 : x
  2. Step 2: Convert to fraction form
    56,754.59/85,172.85 = 21,694.32/x
  3. Step 3: Cross multiply
    56,754.59x = 85,172.85 × 21,694.32
  4. Step 4: Simplify right side
    56,754.59x = 1,847,767,063.21
  5. Step 5: Solve for x
    x = 1,847,767,063.21/56,754.59
  6. Step 6: Final answer
    x = 32,557.14

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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.