Home / 89,740.34-123,842.49-49,455.54

Finding the Fourth Proportional to 89,740.34, 123,842.49 and 49,455.54

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Solution

The fourth proportional to 89,740.34, 123,842.49 and 49,455.54 is: 68,249.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,740.34 : 123,842.49 = 49,455.54 : x
  2. Step 2: Convert to fraction form
    89,740.34/123,842.49 = 49,455.54/x
  3. Step 3: Cross multiply
    89,740.34x = 123,842.49 × 49,455.54
  4. Step 4: Simplify right side
    89,740.34x = 6,124,697,032.44
  5. Step 5: Solve for x
    x = 6,124,697,032.44/89,740.34
  6. Step 6: Final answer
    x = 68,249.10

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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.