Home / 69,029.40-103,543.94-19,109.34

Finding the Fourth Proportional to 69,029.40, 103,543.94 and 19,109.34

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Solution

The fourth proportional to 69,029.40, 103,543.94 and 19,109.34 is: 28,663.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,029.40 : 103,543.94 = 19,109.34 : x
  2. Step 2: Convert to fraction form
    69,029.40/103,543.94 = 19,109.34/x
  3. Step 3: Cross multiply
    69,029.40x = 103,543.94 × 19,109.34
  4. Step 4: Simplify right side
    69,029.40x = 1,978,656,258.85
  5. Step 5: Solve for x
    x = 1,978,656,258.85/69,029.40
  6. Step 6: Final answer
    x = 28,663.96

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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.