Home / 77,612.78-107,104.68-43,627.04

Finding the Fourth Proportional to 77,612.78, 107,104.68 and 43,627.04

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Solution

The fourth proportional to 77,612.78, 107,104.68 and 43,627.04 is: 60,204.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,612.78 : 107,104.68 = 43,627.04 : x
  2. Step 2: Convert to fraction form
    77,612.78/107,104.68 = 43,627.04/x
  3. Step 3: Cross multiply
    77,612.78x = 107,104.68 × 43,627.04
  4. Step 4: Simplify right side
    77,612.78x = 4,672,660,024.67
  5. Step 5: Solve for x
    x = 4,672,660,024.67/77,612.78
  6. Step 6: Final answer
    x = 60,204.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.