Home / 77,694.12-116,290.55-40,202.60

Finding the Fourth Proportional to 77,694.12, 116,290.55 and 40,202.60

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Solution

The fourth proportional to 77,694.12, 116,290.55 and 40,202.60 is: 60,174.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,694.12 : 116,290.55 = 40,202.60 : x
  2. Step 2: Convert to fraction form
    77,694.12/116,290.55 = 40,202.60/x
  3. Step 3: Cross multiply
    77,694.12x = 116,290.55 × 40,202.60
  4. Step 4: Simplify right side
    77,694.12x = 4,675,181,984.48
  5. Step 5: Solve for x
    x = 4,675,181,984.48/77,694.12
  6. Step 6: Final answer
    x = 60,174.21

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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.