Home / 70,732.84-106,091.34-18,143.56

Finding the Fourth Proportional to 70,732.84, 106,091.34 and 18,143.56

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Solution

The fourth proportional to 70,732.84, 106,091.34 and 18,143.56 is: 27,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,732.84 : 106,091.34 = 18,143.56 : x
  2. Step 2: Convert to fraction form
    70,732.84/106,091.34 = 18,143.56/x
  3. Step 3: Cross multiply
    70,732.84x = 106,091.34 × 18,143.56
  4. Step 4: Simplify right side
    70,732.84x = 1,924,874,592.77
  5. Step 5: Solve for x
    x = 1,924,874,592.77/70,732.84
  6. Step 6: Final answer
    x = 27,213.31

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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.