Home / 68,921.52-103,388.06-19,001.59

Finding the Fourth Proportional to 68,921.52, 103,388.06 and 19,001.59

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Solution

The fourth proportional to 68,921.52, 103,388.06 and 19,001.59 is: 28,503.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,921.52 : 103,388.06 = 19,001.59 : x
  2. Step 2: Convert to fraction form
    68,921.52/103,388.06 = 19,001.59/x
  3. Step 3: Cross multiply
    68,921.52x = 103,388.06 × 19,001.59
  4. Step 4: Simplify right side
    68,921.52x = 1,964,537,316.05
  5. Step 5: Solve for x
    x = 1,964,537,316.05/68,921.52
  6. Step 6: Final answer
    x = 28,503.98

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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.