Home / 57,739.11-79,617.53-50,120.15

Finding the Fourth Proportional to 57,739.11, 79,617.53 and 50,120.15

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Solution

The fourth proportional to 57,739.11, 79,617.53 and 50,120.15 is: 69,111.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,739.11 : 79,617.53 = 50,120.15 : x
  2. Step 2: Convert to fraction form
    57,739.11/79,617.53 = 50,120.15/x
  3. Step 3: Cross multiply
    57,739.11x = 79,617.53 × 50,120.15
  4. Step 4: Simplify right side
    57,739.11x = 3,990,441,897.54
  5. Step 5: Solve for x
    x = 3,990,441,897.54/57,739.11
  6. Step 6: Final answer
    x = 69,111.59

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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.