Home / 78,933.96-118,388.16-29,001.78

Finding the Fourth Proportional to 78,933.96, 118,388.16 and 29,001.78

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Solution

The fourth proportional to 78,933.96, 118,388.16 and 29,001.78 is: 43,497.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,933.96 : 118,388.16 = 29,001.78 : x
  2. Step 2: Convert to fraction form
    78,933.96/118,388.16 = 29,001.78/x
  3. Step 3: Cross multiply
    78,933.96x = 118,388.16 × 29,001.78
  4. Step 4: Simplify right side
    78,933.96x = 3,433,467,370.92
  5. Step 5: Solve for x
    x = 3,433,467,370.92/78,933.96
  6. Step 6: Final answer
    x = 43,497.97

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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.