Home / 69,239.47-103,876.71-19,319.54

Finding the Fourth Proportional to 69,239.47, 103,876.71 and 19,319.54

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Solution

The fourth proportional to 69,239.47, 103,876.71 and 19,319.54 is: 28,984.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,239.47 : 103,876.71 = 19,319.54 : x
  2. Step 2: Convert to fraction form
    69,239.47/103,876.71 = 19,319.54/x
  3. Step 3: Cross multiply
    69,239.47x = 103,876.71 × 19,319.54
  4. Step 4: Simplify right side
    69,239.47x = 2,006,850,253.91
  5. Step 5: Solve for x
    x = 2,006,850,253.91/69,239.47
  6. Step 6: Final answer
    x = 28,984.20

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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.