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Finding the Fourth Proportional to 61,872.92, 85,379.90 and 36,380.32

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Solution

The fourth proportional to 61,872.92, 85,379.90 and 36,380.32 is: 50,202.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,872.92 : 85,379.90 = 36,380.32 : x
  2. Step 2: Convert to fraction form
    61,872.92/85,379.90 = 36,380.32/x
  3. Step 3: Cross multiply
    61,872.92x = 85,379.90 × 36,380.32
  4. Step 4: Simplify right side
    61,872.92x = 3,106,148,083.57
  5. Step 5: Solve for x
    x = 3,106,148,083.57/61,872.92
  6. Step 6: Final answer
    x = 50,202.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.