Home / 70,728.15-97,606.04-40,516.11

Finding the Fourth Proportional to 70,728.15, 97,606.04 and 40,516.11

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Solution

The fourth proportional to 70,728.15, 97,606.04 and 40,516.11 is: 55,912.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,728.15 : 97,606.04 = 40,516.11 : x
  2. Step 2: Convert to fraction form
    70,728.15/97,606.04 = 40,516.11/x
  3. Step 3: Cross multiply
    70,728.15x = 97,606.04 × 40,516.11
  4. Step 4: Simplify right side
    70,728.15x = 3,954,616,850.72
  5. Step 5: Solve for x
    x = 3,954,616,850.72/70,728.15
  6. Step 6: Final answer
    x = 55,912.91

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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.