Home / 49,910.21-68,875.18-28,399.49

Finding the Fourth Proportional to 49,910.21, 68,875.18 and 28,399.49

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Solution

The fourth proportional to 49,910.21, 68,875.18 and 28,399.49 is: 39,190.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,910.21 : 68,875.18 = 28,399.49 : x
  2. Step 2: Convert to fraction form
    49,910.21/68,875.18 = 28,399.49/x
  3. Step 3: Cross multiply
    49,910.21x = 68,875.18 × 28,399.49
  4. Step 4: Simplify right side
    49,910.21x = 1,956,019,985.66
  5. Step 5: Solve for x
    x = 1,956,019,985.66/49,910.21
  6. Step 6: Final answer
    x = 39,190.78

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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.