Home / 64,493.76-96,763.32-20,131.68

Finding the Fourth Proportional to 64,493.76, 96,763.32 and 20,131.68

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Solution

The fourth proportional to 64,493.76, 96,763.32 and 20,131.68 is: 30,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,493.76 : 96,763.32 = 20,131.68 : x
  2. Step 2: Convert to fraction form
    64,493.76/96,763.32 = 20,131.68/x
  3. Step 3: Cross multiply
    64,493.76x = 96,763.32 × 20,131.68
  4. Step 4: Simplify right side
    64,493.76x = 1,948,008,193.98
  5. Step 5: Solve for x
    x = 1,948,008,193.98/64,493.76
  6. Step 6: Final answer
    x = 30,204.60

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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.