Home / 67,192.96-100,787.20-19,808.83

Finding the Fourth Proportional to 67,192.96, 100,787.20 and 19,808.83

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Solution

The fourth proportional to 67,192.96, 100,787.20 and 19,808.83 is: 29,712.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,192.96 : 100,787.20 = 19,808.83 : x
  2. Step 2: Convert to fraction form
    67,192.96/100,787.20 = 19,808.83/x
  3. Step 3: Cross multiply
    67,192.96x = 100,787.20 × 19,808.83
  4. Step 4: Simplify right side
    67,192.96x = 1,996,476,411.93
  5. Step 5: Solve for x
    x = 1,996,476,411.93/67,192.96
  6. Step 6: Final answer
    x = 29,712.59

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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.