Home / 70,974.93-97,942.10-40,738.98

Finding the Fourth Proportional to 70,974.93, 97,942.10 and 40,738.98

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Solution

The fourth proportional to 70,974.93, 97,942.10 and 40,738.98 is: 56,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,974.93 : 97,942.10 = 40,738.98 : x
  2. Step 2: Convert to fraction form
    70,974.93/97,942.10 = 40,738.98/x
  3. Step 3: Cross multiply
    70,974.93x = 97,942.10 × 40,738.98
  4. Step 4: Simplify right side
    70,974.93x = 3,990,061,049.36
  5. Step 5: Solve for x
    x = 3,990,061,049.36/70,974.93
  6. Step 6: Final answer
    x = 56,217.89

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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.