Home / 74,022.32-111,029.16-18,614

Finding the Fourth Proportional to 74,022.32, 111,029.16 and 18,614

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Solution

The fourth proportional to 74,022.32, 111,029.16 and 18,614 is: 27,919.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,022.32 : 111,029.16 = 18,614 : x
  2. Step 2: Convert to fraction form
    74,022.32/111,029.16 = 18,614/x
  3. Step 3: Cross multiply
    74,022.32x = 111,029.16 × 18,614
  4. Step 4: Simplify right side
    74,022.32x = 2,066,696,784.24
  5. Step 5: Solve for x
    x = 2,066,696,784.24/74,022.32
  6. Step 6: Final answer
    x = 27,919.91

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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.