Home / 89,740.21-123,842.31-49,455.42

Finding the Fourth Proportional to 89,740.21, 123,842.31 and 49,455.42

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Solution

The fourth proportional to 89,740.21, 123,842.31 and 49,455.42 is: 68,248.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,740.21 : 123,842.31 = 49,455.42 : x
  2. Step 2: Convert to fraction form
    89,740.21/123,842.31 = 49,455.42/x
  3. Step 3: Cross multiply
    89,740.21x = 123,842.31 × 49,455.42
  4. Step 4: Simplify right side
    89,740.21x = 6,124,673,454.82
  5. Step 5: Solve for x
    x = 6,124,673,454.82/89,740.21
  6. Step 6: Final answer
    x = 68,248.93

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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.