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Finding the Fourth Proportional to 55,676.32, 83,512.32 and 18,239.20

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Solution

The fourth proportional to 55,676.32, 83,512.32 and 18,239.20 is: 27,358.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,676.32 : 83,512.32 = 18,239.20 : x
  2. Step 2: Convert to fraction form
    55,676.32/83,512.32 = 18,239.20/x
  3. Step 3: Cross multiply
    55,676.32x = 83,512.32 × 18,239.20
  4. Step 4: Simplify right side
    55,676.32x = 1,523,197,906.94
  5. Step 5: Solve for x
    x = 1,523,197,906.94/55,676.32
  6. Step 6: Final answer
    x = 27,358.09

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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.