Home / 74,014.05-111,020.94-21,423.45

Finding the Fourth Proportional to 74,014.05, 111,020.94 and 21,423.45

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Solution

The fourth proportional to 74,014.05, 111,020.94 and 21,423.45 is: 32,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,014.05 : 111,020.94 = 21,423.45 : x
  2. Step 2: Convert to fraction form
    74,014.05/111,020.94 = 21,423.45/x
  3. Step 3: Cross multiply
    74,014.05x = 111,020.94 × 21,423.45
  4. Step 4: Simplify right side
    74,014.05x = 2,378,451,557.04
  5. Step 5: Solve for x
    x = 2,378,451,557.04/74,014.05
  6. Step 6: Final answer
    x = 32,135.14

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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.