Home / 53,279.11-79,918.64-15,839.02

Finding the Fourth Proportional to 53,279.11, 79,918.64 and 15,839.02

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Solution

The fourth proportional to 53,279.11, 79,918.64 and 15,839.02 is: 23,758.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,279.11 : 79,918.64 = 15,839.02 : x
  2. Step 2: Convert to fraction form
    53,279.11/79,918.64 = 15,839.02/x
  3. Step 3: Cross multiply
    53,279.11x = 79,918.64 × 15,839.02
  4. Step 4: Simplify right side
    53,279.11x = 1,265,832,458.54
  5. Step 5: Solve for x
    x = 1,265,832,458.54/53,279.11
  6. Step 6: Final answer
    x = 23,758.52

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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.