Home / 69,186.32-103,779.52-53,414.38

Finding the Fourth Proportional to 69,186.32, 103,779.52 and 53,414.38

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Solution

The fourth proportional to 69,186.32, 103,779.52 and 53,414.38 is: 80,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,186.32 : 103,779.52 = 53,414.38 : x
  2. Step 2: Convert to fraction form
    69,186.32/103,779.52 = 53,414.38/x
  3. Step 3: Cross multiply
    69,186.32x = 103,779.52 × 53,414.38
  4. Step 4: Simplify right side
    69,186.32x = 5,543,318,717.50
  5. Step 5: Solve for x
    x = 5,543,318,717.50/69,186.32
  6. Step 6: Final answer
    x = 80,121.60

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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.