Home / 54,779.46-82,178.28-19,231.55

Finding the Fourth Proportional to 54,779.46, 82,178.28 and 19,231.55

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Solution

The fourth proportional to 54,779.46, 82,178.28 and 19,231.55 is: 28,850.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,779.46 : 82,178.28 = 19,231.55 : x
  2. Step 2: Convert to fraction form
    54,779.46/82,178.28 = 19,231.55/x
  3. Step 3: Cross multiply
    54,779.46x = 82,178.28 × 19,231.55
  4. Step 4: Simplify right side
    54,779.46x = 1,580,415,906.18
  5. Step 5: Solve for x
    x = 1,580,415,906.18/54,779.46
  6. Step 6: Final answer
    x = 28,850.52

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1.5x scale

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.