Home / 57,837.32-86,702.70-20,376.98

Finding the Fourth Proportional to 57,837.32, 86,702.70 and 20,376.98

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Solution

The fourth proportional to 57,837.32, 86,702.70 and 20,376.98 is: 30,546.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,837.32 : 86,702.70 = 20,376.98 : x
  2. Step 2: Convert to fraction form
    57,837.32/86,702.70 = 20,376.98/x
  3. Step 3: Cross multiply
    57,837.32x = 86,702.70 × 20,376.98
  4. Step 4: Simplify right side
    57,837.32x = 1,766,739,183.85
  5. Step 5: Solve for x
    x = 1,766,739,183.85/57,837.32
  6. Step 6: Final answer
    x = 30,546.70

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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.