Home / 55,979.78-83,962.31-18,530.57

Finding the Fourth Proportional to 55,979.78, 83,962.31 and 18,530.57

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Solution

The fourth proportional to 55,979.78, 83,962.31 and 18,530.57 is: 27,793.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,979.78 : 83,962.31 = 18,530.57 : x
  2. Step 2: Convert to fraction form
    55,979.78/83,962.31 = 18,530.57/x
  3. Step 3: Cross multiply
    55,979.78x = 83,962.31 × 18,530.57
  4. Step 4: Simplify right side
    55,979.78x = 1,555,869,580.07
  5. Step 5: Solve for x
    x = 1,555,869,580.07/55,979.78
  6. Step 6: Final answer
    x = 27,793.42

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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.