Home / 50,090.96-69,121.40-28,871.66

Finding the Fourth Proportional to 50,090.96, 69,121.40 and 28,871.66

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Solution

The fourth proportional to 50,090.96, 69,121.40 and 28,871.66 is: 39,840.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,090.96 : 69,121.40 = 28,871.66 : x
  2. Step 2: Convert to fraction form
    50,090.96/69,121.40 = 28,871.66/x
  3. Step 3: Cross multiply
    50,090.96x = 69,121.40 × 28,871.66
  4. Step 4: Simplify right side
    50,090.96x = 1,995,649,559.52
  5. Step 5: Solve for x
    x = 1,995,649,559.52/50,090.96
  6. Step 6: Final answer
    x = 39,840.51

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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.