Home / 76,860.56-115,270.20-29,465.36

Finding the Fourth Proportional to 76,860.56, 115,270.20 and 29,465.36

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Solution

The fourth proportional to 76,860.56, 115,270.20 and 29,465.36 is: 44,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,860.56 : 115,270.20 = 29,465.36 : x
  2. Step 2: Convert to fraction form
    76,860.56/115,270.20 = 29,465.36/x
  3. Step 3: Cross multiply
    76,860.56x = 115,270.20 × 29,465.36
  4. Step 4: Simplify right side
    76,860.56x = 3,396,477,940.27
  5. Step 5: Solve for x
    x = 3,396,477,940.27/76,860.56
  6. Step 6: Final answer
    x = 44,190.13

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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.