Home / 70,774.32-106,198.39-28,685.51

Finding the Fourth Proportional to 70,774.32, 106,198.39 and 28,685.51

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Solution

The fourth proportional to 70,774.32, 106,198.39 and 28,685.51 is: 43,043.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,774.32 : 106,198.39 = 28,685.51 : x
  2. Step 2: Convert to fraction form
    70,774.32/106,198.39 = 28,685.51/x
  3. Step 3: Cross multiply
    70,774.32x = 106,198.39 × 28,685.51
  4. Step 4: Simplify right side
    70,774.32x = 3,046,354,881.44
  5. Step 5: Solve for x
    x = 3,046,354,881.44/70,774.32
  6. Step 6: Final answer
    x = 43,043.22

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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.