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Finding the Fourth Proportional to 72,060, 108,090.48 and 22,812

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Solution

The fourth proportional to 72,060, 108,090.48 and 22,812 is: 34,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,060 : 108,090.48 = 22,812 : x
  2. Step 2: Convert to fraction form
    72,060/108,090.48 = 22,812/x
  3. Step 3: Cross multiply
    72,060x = 108,090.48 × 22,812
  4. Step 4: Simplify right side
    72,060x = 2,465,760,029.76
  5. Step 5: Solve for x
    x = 2,465,760,029.76/72,060
  6. Step 6: Final answer
    x = 34,218.15

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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.