Home / 79,815.24-119,796.72-40,400.04

Finding the Fourth Proportional to 79,815.24, 119,796.72 and 40,400.04

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Solution

The fourth proportional to 79,815.24, 119,796.72 and 40,400.04 is: 60,637.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,815.24 : 119,796.72 = 40,400.04 : x
  2. Step 2: Convert to fraction form
    79,815.24/119,796.72 = 40,400.04/x
  3. Step 3: Cross multiply
    79,815.24x = 119,796.72 × 40,400.04
  4. Step 4: Simplify right side
    79,815.24x = 4,839,792,279.87
  5. Step 5: Solve for x
    x = 4,839,792,279.87/79,815.24
  6. Step 6: Final answer
    x = 60,637.45

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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.