Home / 70,972.41-97,942.55-39,142.41

Finding the Fourth Proportional to 70,972.41, 97,942.55 and 39,142.41

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Solution

The fourth proportional to 70,972.41, 97,942.55 and 39,142.41 is: 54,016.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,972.41 : 97,942.55 = 39,142.41 : x
  2. Step 2: Convert to fraction form
    70,972.41/97,942.55 = 39,142.41/x
  3. Step 3: Cross multiply
    70,972.41x = 97,942.55 × 39,142.41
  4. Step 4: Simplify right side
    70,972.41x = 3,833,707,252.83
  5. Step 5: Solve for x
    x = 3,833,707,252.83/70,972.41
  6. Step 6: Final answer
    x = 54,016.87

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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.