Home / 72,747.12-109,133.10-22,817.64

Finding the Fourth Proportional to 72,747.12, 109,133.10 and 22,817.64

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Solution

The fourth proportional to 72,747.12, 109,133.10 and 22,817.64 is: 34,230.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,747.12 : 109,133.10 = 22,817.64 : x
  2. Step 2: Convert to fraction form
    72,747.12/109,133.10 = 22,817.64/x
  3. Step 3: Cross multiply
    72,747.12x = 109,133.10 × 22,817.64
  4. Step 4: Simplify right side
    72,747.12x = 2,490,159,787.88
  5. Step 5: Solve for x
    x = 2,490,159,787.88/72,747.12
  6. Step 6: Final answer
    x = 34,230.36

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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.