Home / 75,418.92-113,063.40-28,705.32

Finding the Fourth Proportional to 75,418.92, 113,063.40 and 28,705.32

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Solution

The fourth proportional to 75,418.92, 113,063.40 and 28,705.32 is: 43,033.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,418.92 : 113,063.40 = 28,705.32 : x
  2. Step 2: Convert to fraction form
    75,418.92/113,063.40 = 28,705.32/x
  3. Step 3: Cross multiply
    75,418.92x = 113,063.40 × 28,705.32
  4. Step 4: Simplify right side
    75,418.92x = 3,245,521,077.29
  5. Step 5: Solve for x
    x = 3,245,521,077.29/75,418.92
  6. Step 6: Final answer
    x = 43,033.25

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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.