Home / 64,890.33-97,334.92-20,517.12

Finding the Fourth Proportional to 64,890.33, 97,334.92 and 20,517.12

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Solution

The fourth proportional to 64,890.33, 97,334.92 and 20,517.12 is: 30,775.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,890.33 : 97,334.92 = 20,517.12 : x
  2. Step 2: Convert to fraction form
    64,890.33/97,334.92 = 20,517.12/x
  3. Step 3: Cross multiply
    64,890.33x = 97,334.92 × 20,517.12
  4. Step 4: Simplify right side
    64,890.33x = 1,997,031,747.16
  5. Step 5: Solve for x
    x = 1,997,031,747.16/64,890.33
  6. Step 6: Final answer
    x = 30,775.49

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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.