Home / 96,945.28-145,417.96-30,390.64

Finding the Fourth Proportional to 96,945.28, 145,417.96 and 30,390.64

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Solution

The fourth proportional to 96,945.28, 145,417.96 and 30,390.64 is: 45,585.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,945.28 : 145,417.96 = 30,390.64 : x
  2. Step 2: Convert to fraction form
    96,945.28/145,417.96 = 30,390.64/x
  3. Step 3: Cross multiply
    96,945.28x = 145,417.96 × 30,390.64
  4. Step 4: Simplify right side
    96,945.28x = 4,419,344,871.89
  5. Step 5: Solve for x
    x = 4,419,344,871.89/96,945.28
  6. Step 6: Final answer
    x = 45,585.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.