Home / 57,156.64-85,631.28-55,912.48

Finding the Fourth Proportional to 57,156.64, 85,631.28 and 55,912.48

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Solution

The fourth proportional to 57,156.64, 85,631.28 and 55,912.48 is: 83,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,156.64 : 85,631.28 = 55,912.48 : x
  2. Step 2: Convert to fraction form
    57,156.64/85,631.28 = 55,912.48/x
  3. Step 3: Cross multiply
    57,156.64x = 85,631.28 × 55,912.48
  4. Step 4: Simplify right side
    57,156.64x = 4,787,857,230.37
  5. Step 5: Solve for x
    x = 4,787,857,230.37/57,156.64
  6. Step 6: Final answer
    x = 83,767.30

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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.