Home / 89,438.20-123,424.31-51,197.54

Finding the Fourth Proportional to 89,438.20, 123,424.31 and 51,197.54

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Solution

The fourth proportional to 89,438.20, 123,424.31 and 51,197.54 is: 70,652.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,438.20 : 123,424.31 = 51,197.54 : x
  2. Step 2: Convert to fraction form
    89,438.20/123,424.31 = 51,197.54/x
  3. Step 3: Cross multiply
    89,438.20x = 123,424.31 × 51,197.54
  4. Step 4: Simplify right side
    89,438.20x = 6,319,020,855.42
  5. Step 5: Solve for x
    x = 6,319,020,855.42/89,438.20
  6. Step 6: Final answer
    x = 70,652.37

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