Home / 97,661.68-134,772.38-55,221.72

Finding the Fourth Proportional to 97,661.68, 134,772.38 and 55,221.72

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Solution

The fourth proportional to 97,661.68, 134,772.38 and 55,221.72 is: 76,205.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,661.68 : 134,772.38 = 55,221.72 : x
  2. Step 2: Convert to fraction form
    97,661.68/134,772.38 = 55,221.72/x
  3. Step 3: Cross multiply
    97,661.68x = 134,772.38 × 55,221.72
  4. Step 4: Simplify right side
    97,661.68x = 7,442,362,632.09
  5. Step 5: Solve for x
    x = 7,442,362,632.09/97,661.68
  6. Step 6: Final answer
    x = 76,205.56

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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.