Home / 69,272.27-103,893.32-18,670.12

Finding the Fourth Proportional to 69,272.27, 103,893.32 and 18,670.12

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Solution

The fourth proportional to 69,272.27, 103,893.32 and 18,670.12 is: 28,001.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,272.27 : 103,893.32 = 18,670.12 : x
  2. Step 2: Convert to fraction form
    69,272.27/103,893.32 = 18,670.12/x
  3. Step 3: Cross multiply
    69,272.27x = 103,893.32 × 18,670.12
  4. Step 4: Simplify right side
    69,272.27x = 1,939,700,538.54
  5. Step 5: Solve for x
    x = 1,939,700,538.54/69,272.27
  6. Step 6: Final answer
    x = 28,001.11

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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.