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Finding the Fourth Proportional to 72,647.28, 108,970.92 and 22,727.28

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Solution

The fourth proportional to 72,647.28, 108,970.92 and 22,727.28 is: 34,090.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,647.28 : 108,970.92 = 22,727.28 : x
  2. Step 2: Convert to fraction form
    72,647.28/108,970.92 = 22,727.28/x
  3. Step 3: Cross multiply
    72,647.28x = 108,970.92 × 22,727.28
  4. Step 4: Simplify right side
    72,647.28x = 2,476,612,610.70
  5. Step 5: Solve for x
    x = 2,476,612,610.70/72,647.28
  6. Step 6: Final answer
    x = 34,090.92

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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.