Home / 76,682.72-115,073.24-37,218.32

Finding the Fourth Proportional to 76,682.72, 115,073.24 and 37,218.32

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Solution

The fourth proportional to 76,682.72, 115,073.24 and 37,218.32 is: 55,851.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,682.72 : 115,073.24 = 37,218.32 : x
  2. Step 2: Convert to fraction form
    76,682.72/115,073.24 = 37,218.32/x
  3. Step 3: Cross multiply
    76,682.72x = 115,073.24 × 37,218.32
  4. Step 4: Simplify right side
    76,682.72x = 4,282,832,669.76
  5. Step 5: Solve for x
    x = 4,282,832,669.76/76,682.72
  6. Step 6: Final answer
    x = 55,851.34

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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.