Home / 70,660.29-97,516.64-40,455.09

Finding the Fourth Proportional to 70,660.29, 97,516.64 and 40,455.09

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Solution

The fourth proportional to 70,660.29, 97,516.64 and 40,455.09 is: 55,831.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,660.29 : 97,516.64 = 40,455.09 : x
  2. Step 2: Convert to fraction form
    70,660.29/97,516.64 = 40,455.09/x
  3. Step 3: Cross multiply
    70,660.29x = 97,516.64 × 40,455.09
  4. Step 4: Simplify right side
    70,660.29x = 3,945,044,245.42
  5. Step 5: Solve for x
    x = 3,945,044,245.42/70,660.29
  6. Step 6: Final answer
    x = 55,831.14

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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.