Home / 69,181.32-103,772.02-53,409.38

Finding the Fourth Proportional to 69,181.32, 103,772.02 and 53,409.38

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Solution

The fourth proportional to 69,181.32, 103,772.02 and 53,409.38 is: 80,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,181.32 : 103,772.02 = 53,409.38 : x
  2. Step 2: Convert to fraction form
    69,181.32/103,772.02 = 53,409.38/x
  3. Step 3: Cross multiply
    69,181.32x = 103,772.02 × 53,409.38
  4. Step 4: Simplify right side
    69,181.32x = 5,542,399,249.55
  5. Step 5: Solve for x
    x = 5,542,399,249.55/69,181.32
  6. Step 6: Final answer
    x = 80,114.10

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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.