Home / 64,170.72-96,099.12-39,221.28

Finding the Fourth Proportional to 64,170.72, 96,099.12 and 39,221.28

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Solution

The fourth proportional to 64,170.72, 96,099.12 and 39,221.28 is: 58,735.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,170.72 : 96,099.12 = 39,221.28 : x
  2. Step 2: Convert to fraction form
    64,170.72/96,099.12 = 39,221.28/x
  3. Step 3: Cross multiply
    64,170.72x = 96,099.12 × 39,221.28
  4. Step 4: Simplify right side
    64,170.72x = 3,769,130,493.27
  5. Step 5: Solve for x
    x = 3,769,130,493.27/64,170.72
  6. Step 6: Final answer
    x = 58,735.99

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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.