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Finding the Fourth Proportional to 72,092.64, 108,138.94 and 27,740.28

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Solution

The fourth proportional to 72,092.64, 108,138.94 and 27,740.28 is: 41,610.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,092.64 : 108,138.94 = 27,740.28 : x
  2. Step 2: Convert to fraction form
    72,092.64/108,138.94 = 27,740.28/x
  3. Step 3: Cross multiply
    72,092.64x = 108,138.94 × 27,740.28
  4. Step 4: Simplify right side
    72,092.64x = 2,999,804,474.50
  5. Step 5: Solve for x
    x = 2,999,804,474.50/72,092.64
  6. Step 6: Final answer
    x = 41,610.41

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1.5x scale

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.