Home / 76,940.13-115,425.15-29,551.75

Finding the Fourth Proportional to 76,940.13, 115,425.15 and 29,551.75

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Solution

The fourth proportional to 76,940.13, 115,425.15 and 29,551.75 is: 44,333.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,940.13 : 115,425.15 = 29,551.75 : x
  2. Step 2: Convert to fraction form
    76,940.13/115,425.15 = 29,551.75/x
  3. Step 3: Cross multiply
    76,940.13x = 115,425.15 × 29,551.75
  4. Step 4: Simplify right side
    76,940.13x = 3,411,015,176.51
  5. Step 5: Solve for x
    x = 3,411,015,176.51/76,940.13
  6. Step 6: Final answer
    x = 44,333.37

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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.