Home / 53,112.38-79,672.65-13,669.88

Finding the Fourth Proportional to 53,112.38, 79,672.65 and 13,669.88

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Solution

The fourth proportional to 53,112.38, 79,672.65 and 13,669.88 is: 20,505.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,112.38 : 79,672.65 = 13,669.88 : x
  2. Step 2: Convert to fraction form
    53,112.38/79,672.65 = 13,669.88/x
  3. Step 3: Cross multiply
    53,112.38x = 79,672.65 × 13,669.88
  4. Step 4: Simplify right side
    53,112.38x = 1,089,115,564.78
  5. Step 5: Solve for x
    x = 1,089,115,564.78/53,112.38
  6. Step 6: Final answer
    x = 20,505.87

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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.