Home / 51,177.63-76,755.86-13,728.81

Finding the Fourth Proportional to 51,177.63, 76,755.86 and 13,728.81

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Solution

The fourth proportional to 51,177.63, 76,755.86 and 13,728.81 is: 20,590.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,177.63 : 76,755.86 = 13,728.81 : x
  2. Step 2: Convert to fraction form
    51,177.63/76,755.86 = 13,728.81/x
  3. Step 3: Cross multiply
    51,177.63x = 76,755.86 × 13,728.81
  4. Step 4: Simplify right side
    51,177.63x = 1,053,766,618.33
  5. Step 5: Solve for x
    x = 1,053,766,618.33/51,177.63
  6. Step 6: Final answer
    x = 20,590.38

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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.