Home / 64,851.28-97,240.44-20,469.76

Finding the Fourth Proportional to 64,851.28, 97,240.44 and 20,469.76

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Solution

The fourth proportional to 64,851.28, 97,240.44 and 20,469.76 is: 30,693.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,851.28 : 97,240.44 = 20,469.76 : x
  2. Step 2: Convert to fraction form
    64,851.28/97,240.44 = 20,469.76/x
  3. Step 3: Cross multiply
    64,851.28x = 97,240.44 × 20,469.76
  4. Step 4: Simplify right side
    64,851.28x = 1,990,488,469.09
  5. Step 5: Solve for x
    x = 1,990,488,469.09/64,851.28
  6. Step 6: Final answer
    x = 30,693.13

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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.