Home / 76,819.72-115,150.44-29,421.88

Finding the Fourth Proportional to 76,819.72, 115,150.44 and 29,421.88

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Solution

The fourth proportional to 76,819.72, 115,150.44 and 29,421.88 is: 44,102.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,819.72 : 115,150.44 = 29,421.88 : x
  2. Step 2: Convert to fraction form
    76,819.72/115,150.44 = 29,421.88/x
  3. Step 3: Cross multiply
    76,819.72x = 115,150.44 × 29,421.88
  4. Step 4: Simplify right side
    76,819.72x = 3,387,942,427.63
  5. Step 5: Solve for x
    x = 3,387,942,427.63/76,819.72
  6. Step 6: Final answer
    x = 44,102.51

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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.