Home / 52,918.40-79,327-19,629.56

Finding the Fourth Proportional to 52,918.40, 79,327 and 19,629.56

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Solution

The fourth proportional to 52,918.40, 79,327 and 19,629.56 is: 29,425.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,918.40 : 79,327 = 19,629.56 : x
  2. Step 2: Convert to fraction form
    52,918.40/79,327 = 19,629.56/x
  3. Step 3: Cross multiply
    52,918.40x = 79,327 × 19,629.56
  4. Step 4: Simplify right side
    52,918.40x = 1,557,154,106.12
  5. Step 5: Solve for x
    x = 1,557,154,106.12/52,918.40
  6. Step 6: Final answer
    x = 29,425.57

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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.