Home / 75,063.22-112,640.99-30,690.20

Finding the Fourth Proportional to 75,063.22, 112,640.99 and 30,690.20

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Solution

The fourth proportional to 75,063.22, 112,640.99 and 30,690.20 is: 46,054.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,063.22 : 112,640.99 = 30,690.20 : x
  2. Step 2: Convert to fraction form
    75,063.22/112,640.99 = 30,690.20/x
  3. Step 3: Cross multiply
    75,063.22x = 112,640.99 × 30,690.20
  4. Step 4: Simplify right side
    75,063.22x = 3,456,974,511.30
  5. Step 5: Solve for x
    x = 3,456,974,511.30/75,063.22
  6. Step 6: Final answer
    x = 46,054.17

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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.