Home / 48,939.89-73,471.79-40,720.41

Finding the Fourth Proportional to 48,939.89, 73,471.79 and 40,720.41

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Solution

The fourth proportional to 48,939.89, 73,471.79 and 40,720.41 is: 61,132.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,939.89 : 73,471.79 = 40,720.41 : x
  2. Step 2: Convert to fraction form
    48,939.89/73,471.79 = 40,720.41/x
  3. Step 3: Cross multiply
    48,939.89x = 73,471.79 × 40,720.41
  4. Step 4: Simplify right side
    48,939.89x = 2,991,801,208.63
  5. Step 5: Solve for x
    x = 2,991,801,208.63/48,939.89
  6. Step 6: Final answer
    x = 61,132.17

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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.