Home / 74,284.74-111,425.94-18,125.28

Finding the Fourth Proportional to 74,284.74, 111,425.94 and 18,125.28

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Solution

The fourth proportional to 74,284.74, 111,425.94 and 18,125.28 is: 27,187.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,284.74 : 111,425.94 = 18,125.28 : x
  2. Step 2: Convert to fraction form
    74,284.74/111,425.94 = 18,125.28/x
  3. Step 3: Cross multiply
    74,284.74x = 111,425.94 × 18,125.28
  4. Step 4: Simplify right side
    74,284.74x = 2,019,626,361.76
  5. Step 5: Solve for x
    x = 2,019,626,361.76/74,284.74
  6. Step 6: Final answer
    x = 27,187.63

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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.