Home / 68,741.97-103,111.07-21,994.17

Finding the Fourth Proportional to 68,741.97, 103,111.07 and 21,994.17

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Solution

The fourth proportional to 68,741.97, 103,111.07 and 21,994.17 is: 32,990.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,741.97 : 103,111.07 = 21,994.17 : x
  2. Step 2: Convert to fraction form
    68,741.97/103,111.07 = 21,994.17/x
  3. Step 3: Cross multiply
    68,741.97x = 103,111.07 × 21,994.17
  4. Step 4: Simplify right side
    68,741.97x = 2,267,842,292.49
  5. Step 5: Solve for x
    x = 2,267,842,292.49/68,741.97
  6. Step 6: Final answer
    x = 32,990.65

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Double scale
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1.5x scale

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.