Home / 96,995.78-145,499.81-30,438.53

Finding the Fourth Proportional to 96,995.78, 145,499.81 and 30,438.53

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Solution

The fourth proportional to 96,995.78, 145,499.81 and 30,438.53 is: 45,659.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,995.78 : 145,499.81 = 30,438.53 : x
  2. Step 2: Convert to fraction form
    96,995.78/145,499.81 = 30,438.53/x
  3. Step 3: Cross multiply
    96,995.78x = 145,499.81 × 30,438.53
  4. Step 4: Simplify right side
    96,995.78x = 4,428,800,331.68
  5. Step 5: Solve for x
    x = 4,428,800,331.68/96,995.78
  6. Step 6: Final answer
    x = 45,659.72

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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.