Home / 70,723.77-106,100.51-20,799.68

Finding the Fourth Proportional to 70,723.77, 106,100.51 and 20,799.68

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Solution

The fourth proportional to 70,723.77, 106,100.51 and 20,799.68 is: 31,203.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,723.77 : 106,100.51 = 20,799.68 : x
  2. Step 2: Convert to fraction form
    70,723.77/106,100.51 = 20,799.68/x
  3. Step 3: Cross multiply
    70,723.77x = 106,100.51 × 20,799.68
  4. Step 4: Simplify right side
    70,723.77x = 2,206,856,021.34
  5. Step 5: Solve for x
    x = 2,206,856,021.34/70,723.77
  6. Step 6: Final answer
    x = 31,203.88

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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.