Home / 70,974.36-97,949.10-39,143.32

Finding the Fourth Proportional to 70,974.36, 97,949.10 and 39,143.32

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Solution

The fourth proportional to 70,974.36, 97,949.10 and 39,143.32 is: 54,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,974.36 : 97,949.10 = 39,143.32 : x
  2. Step 2: Convert to fraction form
    70,974.36/97,949.10 = 39,143.32/x
  3. Step 3: Cross multiply
    70,974.36x = 97,949.10 × 39,143.32
  4. Step 4: Simplify right side
    70,974.36x = 3,834,052,965.01
  5. Step 5: Solve for x
    x = 3,834,052,965.01/70,974.36
  6. Step 6: Final answer
    x = 54,020.25

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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.