Home / 55,171.08-82,706.44-20,102.76

Finding the Fourth Proportional to 55,171.08, 82,706.44 and 20,102.76

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Solution

The fourth proportional to 55,171.08, 82,706.44 and 20,102.76 is: 30,135.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,171.08 : 82,706.44 = 20,102.76 : x
  2. Step 2: Convert to fraction form
    55,171.08/82,706.44 = 20,102.76/x
  3. Step 3: Cross multiply
    55,171.08x = 82,706.44 × 20,102.76
  4. Step 4: Simplify right side
    55,171.08x = 1,662,627,713.77
  5. Step 5: Solve for x
    x = 1,662,627,713.77/55,171.08
  6. Step 6: Final answer
    x = 30,135.86

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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.