Home / 87,270.32-120,436.44-49,548.08

Finding the Fourth Proportional to 87,270.32, 120,436.44 and 49,548.08

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Solution

The fourth proportional to 87,270.32, 120,436.44 and 49,548.08 is: 68,378.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,270.32 : 120,436.44 = 49,548.08 : x
  2. Step 2: Convert to fraction form
    87,270.32/120,436.44 = 49,548.08/x
  3. Step 3: Cross multiply
    87,270.32x = 120,436.44 × 49,548.08
  4. Step 4: Simplify right side
    87,270.32x = 5,967,394,364.04
  5. Step 5: Solve for x
    x = 5,967,394,364.04/87,270.32
  6. Step 6: Final answer
    x = 68,378.28

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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.