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Finding the Fourth Proportional to 57,213, 85,839.66 and 25,620.48

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Solution

The fourth proportional to 57,213, 85,839.66 and 25,620.48 is: 38,439.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,213 : 85,839.66 = 25,620.48 : x
  2. Step 2: Convert to fraction form
    57,213/85,839.66 = 25,620.48/x
  3. Step 3: Cross multiply
    57,213x = 85,839.66 × 25,620.48
  4. Step 4: Simplify right side
    57,213x = 2,199,253,292.24
  5. Step 5: Solve for x
    x = 2,199,253,292.24/57,213
  6. Step 6: Final answer
    x = 38,439.75

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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.