Home / 67,388.12-101,118.78-27,972.32

Finding the Fourth Proportional to 67,388.12, 101,118.78 and 27,972.32

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Solution

The fourth proportional to 67,388.12, 101,118.78 and 27,972.32 is: 41,973.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,388.12 : 101,118.78 = 27,972.32 : x
  2. Step 2: Convert to fraction form
    67,388.12/101,118.78 = 27,972.32/x
  3. Step 3: Cross multiply
    67,388.12x = 101,118.78 × 27,972.32
  4. Step 4: Simplify right side
    67,388.12x = 2,828,526,872.17
  5. Step 5: Solve for x
    x = 2,828,526,872.17/67,388.12
  6. Step 6: Final answer
    x = 41,973.67

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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.