Home / 77,539.30-107,006.82-43,553.78

Finding the Fourth Proportional to 77,539.30, 107,006.82 and 43,553.78

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Solution

The fourth proportional to 77,539.30, 107,006.82 and 43,553.78 is: 60,105.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,539.30 : 107,006.82 = 43,553.78 : x
  2. Step 2: Convert to fraction form
    77,539.30/107,006.82 = 43,553.78/x
  3. Step 3: Cross multiply
    77,539.30x = 107,006.82 × 43,553.78
  4. Step 4: Simplify right side
    77,539.30x = 4,660,551,496.78
  5. Step 5: Solve for x
    x = 4,660,551,496.78/77,539.30
  6. Step 6: Final answer
    x = 60,105.67

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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.