Home / 77,989.62-107,625.36-43,998.10

Finding the Fourth Proportional to 77,989.62, 107,625.36 and 43,998.10

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Solution

The fourth proportional to 77,989.62, 107,625.36 and 43,998.10 is: 60,717.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,989.62 : 107,625.36 = 43,998.10 : x
  2. Step 2: Convert to fraction form
    77,989.62/107,625.36 = 43,998.10/x
  3. Step 3: Cross multiply
    77,989.62x = 107,625.36 × 43,998.10
  4. Step 4: Simplify right side
    77,989.62x = 4,735,311,481.90
  5. Step 5: Solve for x
    x = 4,735,311,481.90/77,989.62
  6. Step 6: Final answer
    x = 60,717.21

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1.5x scale

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.