Home / 112,949.28-169,422.94-28,709.68

Finding the Fourth Proportional to 112,949.28, 169,422.94 and 28,709.68

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Solution

The fourth proportional to 112,949.28, 169,422.94 and 28,709.68 is: 43,064.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,949.28 : 169,422.94 = 28,709.68 : x
  2. Step 2: Convert to fraction form
    112,949.28/169,422.94 = 28,709.68/x
  3. Step 3: Cross multiply
    112,949.28x = 169,422.94 × 28,709.68
  4. Step 4: Simplify right side
    112,949.28x = 4,864,078,392.06
  5. Step 5: Solve for x
    x = 4,864,078,392.06/112,949.28
  6. Step 6: Final answer
    x = 43,064.27

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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.