Home / 57,171.14-85,770.32-19,731.53

Finding the Fourth Proportional to 57,171.14, 85,770.32 and 19,731.53

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Solution

The fourth proportional to 57,171.14, 85,770.32 and 19,731.53 is: 29,601.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,171.14 : 85,770.32 = 19,731.53 : x
  2. Step 2: Convert to fraction form
    57,171.14/85,770.32 = 19,731.53/x
  3. Step 3: Cross multiply
    57,171.14x = 85,770.32 × 19,731.53
  4. Step 4: Simplify right side
    57,171.14x = 1,692,379,262.67
  5. Step 5: Solve for x
    x = 1,692,379,262.67/57,171.14
  6. Step 6: Final answer
    x = 29,601.99

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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.