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Finding the Fourth Proportional to 40,485, 55,876.86 and 23,718

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Solution

The fourth proportional to 40,485, 55,876.86 and 23,718 is: 32,735.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,485 : 55,876.86 = 23,718 : x
  2. Step 2: Convert to fraction form
    40,485/55,876.86 = 23,718/x
  3. Step 3: Cross multiply
    40,485x = 55,876.86 × 23,718
  4. Step 4: Simplify right side
    40,485x = 1,325,287,365.48
  5. Step 5: Solve for x
    x = 1,325,287,365.48/40,485
  6. Step 6: Final answer
    x = 32,735.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.