Home / 50,781.28-76,189.20-26,140

Finding the Fourth Proportional to 50,781.28, 76,189.20 and 26,140

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Solution

The fourth proportional to 50,781.28, 76,189.20 and 26,140 is: 39,218.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,781.28 : 76,189.20 = 26,140 : x
  2. Step 2: Convert to fraction form
    50,781.28/76,189.20 = 26,140/x
  3. Step 3: Cross multiply
    50,781.28x = 76,189.20 × 26,140
  4. Step 4: Simplify right side
    50,781.28x = 1,991,585,688
  5. Step 5: Solve for x
    x = 1,991,585,688/50,781.28
  6. Step 6: Final answer
    x = 39,218.89

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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.