Home / 73,281.40-109,929.06-19,974.04

Finding the Fourth Proportional to 73,281.40, 109,929.06 and 19,974.04

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Solution

The fourth proportional to 73,281.40, 109,929.06 and 19,974.04 is: 29,962.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,281.40 : 109,929.06 = 19,974.04 : x
  2. Step 2: Convert to fraction form
    73,281.40/109,929.06 = 19,974.04/x
  3. Step 3: Cross multiply
    73,281.40x = 109,929.06 × 19,974.04
  4. Step 4: Simplify right side
    73,281.40x = 2,195,727,441.60
  5. Step 5: Solve for x
    x = 2,195,727,441.60/73,281.40
  6. Step 6: Final answer
    x = 29,962.96

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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.