Home / 64,890.28-97,351.64-18,142.80

Finding the Fourth Proportional to 64,890.28, 97,351.64 and 18,142.80

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Solution

The fourth proportional to 64,890.28, 97,351.64 and 18,142.80 is: 27,218.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,890.28 : 97,351.64 = 18,142.80 : x
  2. Step 2: Convert to fraction form
    64,890.28/97,351.64 = 18,142.80/x
  3. Step 3: Cross multiply
    64,890.28x = 97,351.64 × 18,142.80
  4. Step 4: Simplify right side
    64,890.28x = 1,766,231,334.19
  5. Step 5: Solve for x
    x = 1,766,231,334.19/64,890.28
  6. Step 6: Final answer
    x = 27,218.73

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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.