Home / 74,202.11-111,118.53-51,911.11

Finding the Fourth Proportional to 74,202.11, 111,118.53 and 51,911.11

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Solution

The fourth proportional to 74,202.11, 111,118.53 and 51,911.11 is: 77,737.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,202.11 : 111,118.53 = 51,911.11 : x
  2. Step 2: Convert to fraction form
    74,202.11/111,118.53 = 51,911.11/x
  3. Step 3: Cross multiply
    74,202.11x = 111,118.53 × 51,911.11
  4. Step 4: Simplify right side
    74,202.11x = 5,768,286,233.87
  5. Step 5: Solve for x
    x = 5,768,286,233.87/74,202.11
  6. Step 6: Final answer
    x = 77,737.50

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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.