Home / 76,721.96-115,055.82-29,350.28

Finding the Fourth Proportional to 76,721.96, 115,055.82 and 29,350.28

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Solution

The fourth proportional to 76,721.96, 115,055.82 and 29,350.28 is: 44,015.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,721.96 : 115,055.82 = 29,350.28 : x
  2. Step 2: Convert to fraction form
    76,721.96/115,055.82 = 29,350.28/x
  3. Step 3: Cross multiply
    76,721.96x = 115,055.82 × 29,350.28
  4. Step 4: Simplify right side
    76,721.96x = 3,376,920,532.63
  5. Step 5: Solve for x
    x = 3,376,920,532.63/76,721.96
  6. Step 6: Final answer
    x = 44,015.05

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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.