Home / 57,168.70-85,983.45-51,178.30

Finding the Fourth Proportional to 57,168.70, 85,983.45 and 51,178.30

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Solution

The fourth proportional to 57,168.70, 85,983.45 and 51,178.30 is: 76,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,168.70 : 85,983.45 = 51,178.30 : x
  2. Step 2: Convert to fraction form
    57,168.70/85,983.45 = 51,178.30/x
  3. Step 3: Cross multiply
    57,168.70x = 85,983.45 × 51,178.30
  4. Step 4: Simplify right side
    57,168.70x = 4,400,486,799.14
  5. Step 5: Solve for x
    x = 4,400,486,799.14/57,168.70
  6. Step 6: Final answer
    x = 76,973.71

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1.5x scale

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.