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Finding the Fourth Proportional to 57,277.40, 85,937.70 and 27,721.40

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Solution

The fourth proportional to 57,277.40, 85,937.70 and 27,721.40 is: 41,592.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,277.40 : 85,937.70 = 27,721.40 : x
  2. Step 2: Convert to fraction form
    57,277.40/85,937.70 = 27,721.40/x
  3. Step 3: Cross multiply
    57,277.40x = 85,937.70 × 27,721.40
  4. Step 4: Simplify right side
    57,277.40x = 2,382,313,356.78
  5. Step 5: Solve for x
    x = 2,382,313,356.78/57,277.40
  6. Step 6: Final answer
    x = 41,592.55

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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.