Home / 69,138.81-103,710.26-27,017.19

Finding the Fourth Proportional to 69,138.81, 103,710.26 and 27,017.19

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Solution

The fourth proportional to 69,138.81, 103,710.26 and 27,017.19 is: 40,526.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,138.81 : 103,710.26 = 27,017.19 : x
  2. Step 2: Convert to fraction form
    69,138.81/103,710.26 = 27,017.19/x
  3. Step 3: Cross multiply
    69,138.81x = 103,710.26 × 27,017.19
  4. Step 4: Simplify right side
    69,138.81x = 2,801,959,866.91
  5. Step 5: Solve for x
    x = 2,801,959,866.91/69,138.81
  6. Step 6: Final answer
    x = 40,526.59

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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.