Home / 74,199.28-111,297.29-18,039.68

Finding the Fourth Proportional to 74,199.28, 111,297.29 and 18,039.68

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Solution

The fourth proportional to 74,199.28, 111,297.29 and 18,039.68 is: 27,059.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,199.28 : 111,297.29 = 18,039.68 : x
  2. Step 2: Convert to fraction form
    74,199.28/111,297.29 = 18,039.68/x
  3. Step 3: Cross multiply
    74,199.28x = 111,297.29 × 18,039.68
  4. Step 4: Simplify right side
    74,199.28x = 2,007,767,496.47
  5. Step 5: Solve for x
    x = 2,007,767,496.47/74,199.28
  6. Step 6: Final answer
    x = 27,059.12

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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.