Home / 57,945.28-86,915.52-18,504.64

Finding the Fourth Proportional to 57,945.28, 86,915.52 and 18,504.64

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Solution

The fourth proportional to 57,945.28, 86,915.52 and 18,504.64 is: 27,756.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,945.28 : 86,915.52 = 18,504.64 : x
  2. Step 2: Convert to fraction form
    57,945.28/86,915.52 = 18,504.64/x
  3. Step 3: Cross multiply
    57,945.28x = 86,915.52 × 18,504.64
  4. Step 4: Simplify right side
    57,945.28x = 1,608,340,408.01
  5. Step 5: Solve for x
    x = 1,608,340,408.01/57,945.28
  6. Step 6: Final answer
    x = 27,756.19

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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.