Home / 55,068.98-82,519.36-40,960.78

Finding the Fourth Proportional to 55,068.98, 82,519.36 and 40,960.78

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Solution

The fourth proportional to 55,068.98, 82,519.36 and 40,960.78 is: 61,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,068.98 : 82,519.36 = 40,960.78 : x
  2. Step 2: Convert to fraction form
    55,068.98/82,519.36 = 40,960.78/x
  3. Step 3: Cross multiply
    55,068.98x = 82,519.36 × 40,960.78
  4. Step 4: Simplify right side
    55,068.98x = 3,380,057,351.45
  5. Step 5: Solve for x
    x = 3,380,057,351.45/55,068.98
  6. Step 6: Final answer
    x = 61,378.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.