Home / 70,808.42-106,176.06-20,882.18

Finding the Fourth Proportional to 70,808.42, 106,176.06 and 20,882.18

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Solution

The fourth proportional to 70,808.42, 106,176.06 and 20,882.18 is: 31,312.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,808.42 : 106,176.06 = 20,882.18 : x
  2. Step 2: Convert to fraction form
    70,808.42/106,176.06 = 20,882.18/x
  3. Step 3: Cross multiply
    70,808.42x = 106,176.06 × 20,882.18
  4. Step 4: Simplify right side
    70,808.42x = 2,217,187,065.73
  5. Step 5: Solve for x
    x = 2,217,187,065.73/70,808.42
  6. Step 6: Final answer
    x = 31,312.48

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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.