Home / 73,971.48-111,036.18-31,872.44

Finding the Fourth Proportional to 73,971.48, 111,036.18 and 31,872.44

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Solution

The fourth proportional to 73,971.48, 111,036.18 and 31,872.44 is: 47,842.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,971.48 : 111,036.18 = 31,872.44 : x
  2. Step 2: Convert to fraction form
    73,971.48/111,036.18 = 31,872.44/x
  3. Step 3: Cross multiply
    73,971.48x = 111,036.18 × 31,872.44
  4. Step 4: Simplify right side
    73,971.48x = 3,538,993,429.70
  5. Step 5: Solve for x
    x = 3,538,993,429.70/73,971.48
  6. Step 6: Final answer
    x = 47,842.67

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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.