Home / 69,092.29-103,638.44-19,172.40

Finding the Fourth Proportional to 69,092.29, 103,638.44 and 19,172.40

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Solution

The fourth proportional to 69,092.29, 103,638.44 and 19,172.40 is: 28,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,092.29 : 103,638.44 = 19,172.40 : x
  2. Step 2: Convert to fraction form
    69,092.29/103,638.44 = 19,172.40/x
  3. Step 3: Cross multiply
    69,092.29x = 103,638.44 × 19,172.40
  4. Step 4: Simplify right side
    69,092.29x = 1,986,997,627.06
  5. Step 5: Solve for x
    x = 1,986,997,627.06/69,092.29
  6. Step 6: Final answer
    x = 28,758.60

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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.