Home / 74,299.53-111,448.89-18,139.93

Finding the Fourth Proportional to 74,299.53, 111,448.89 and 18,139.93

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Solution

The fourth proportional to 74,299.53, 111,448.89 and 18,139.93 is: 27,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,299.53 : 111,448.89 = 18,139.93 : x
  2. Step 2: Convert to fraction form
    74,299.53/111,448.89 = 18,139.93/x
  3. Step 3: Cross multiply
    74,299.53x = 111,448.89 × 18,139.93
  4. Step 4: Simplify right side
    74,299.53x = 2,021,675,063.18
  5. Step 5: Solve for x
    x = 2,021,675,063.18/74,299.53
  6. Step 6: Final answer
    x = 27,209.80

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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.