Home / 89,848.92-123,989.32-49,561.80

Finding the Fourth Proportional to 89,848.92, 123,989.32 and 49,561.80

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Solution

The fourth proportional to 89,848.92, 123,989.32 and 49,561.80 is: 68,394.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,848.92 : 123,989.32 = 49,561.80 : x
  2. Step 2: Convert to fraction form
    89,848.92/123,989.32 = 49,561.80/x
  3. Step 3: Cross multiply
    89,848.92x = 123,989.32 × 49,561.80
  4. Step 4: Simplify right side
    89,848.92x = 6,145,133,879.98
  5. Step 5: Solve for x
    x = 6,145,133,879.98/89,848.92
  6. Step 6: Final answer
    x = 68,394.08

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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.