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Finding the Fourth Proportional to 57,251.80, 85,877.70 and 39,537.10

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Solution

The fourth proportional to 57,251.80, 85,877.70 and 39,537.10 is: 59,305.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,251.80 : 85,877.70 = 39,537.10 : x
  2. Step 2: Convert to fraction form
    57,251.80/85,877.70 = 39,537.10/x
  3. Step 3: Cross multiply
    57,251.80x = 85,877.70 × 39,537.10
  4. Step 4: Simplify right side
    57,251.80x = 3,395,355,212.67
  5. Step 5: Solve for x
    x = 3,395,355,212.67/57,251.80
  6. Step 6: Final answer
    x = 59,305.65

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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.