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Finding the Fourth Proportional to 45,978.39, 68,918.49 and 26,214.39

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Solution

The fourth proportional to 45,978.39, 68,918.49 and 26,214.39 is: 39,293.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,978.39 : 68,918.49 = 26,214.39 : x
  2. Step 2: Convert to fraction form
    45,978.39/68,918.49 = 26,214.39/x
  3. Step 3: Cross multiply
    45,978.39x = 68,918.49 × 26,214.39
  4. Step 4: Simplify right side
    45,978.39x = 1,806,656,175.07
  5. Step 5: Solve for x
    x = 1,806,656,175.07/45,978.39
  6. Step 6: Final answer
    x = 39,293.59

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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.