Home / 70,972.97-97,942.65-39,141.89

Finding the Fourth Proportional to 70,972.97, 97,942.65 and 39,141.89

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Solution

The fourth proportional to 70,972.97, 97,942.65 and 39,141.89 is: 54,015.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,972.97 : 97,942.65 = 39,141.89 : x
  2. Step 2: Convert to fraction form
    70,972.97/97,942.65 = 39,141.89/x
  3. Step 3: Cross multiply
    70,972.97x = 97,942.65 × 39,141.89
  4. Step 4: Simplify right side
    70,972.97x = 3,833,659,942.90
  5. Step 5: Solve for x
    x = 3,833,659,942.90/70,972.97
  6. Step 6: Final answer
    x = 54,015.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.