Home / 76,811.78-115,238.58-23,502.58

Finding the Fourth Proportional to 76,811.78, 115,238.58 and 23,502.58

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Solution

The fourth proportional to 76,811.78, 115,238.58 and 23,502.58 is: 35,260.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,811.78 : 115,238.58 = 23,502.58 : x
  2. Step 2: Convert to fraction form
    76,811.78/115,238.58 = 23,502.58/x
  3. Step 3: Cross multiply
    76,811.78x = 115,238.58 × 23,502.58
  4. Step 4: Simplify right side
    76,811.78x = 2,708,403,657.44
  5. Step 5: Solve for x
    x = 2,708,403,657.44/76,811.78
  6. Step 6: Final answer
    x = 35,260.26

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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.