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Finding the Fourth Proportional to 55,174.76, 82,774.39 and 20,114.31

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Solution

The fourth proportional to 55,174.76, 82,774.39 and 20,114.31 is: 30,175.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,174.76 : 82,774.39 = 20,114.31 : x
  2. Step 2: Convert to fraction form
    55,174.76/82,774.39 = 20,114.31/x
  3. Step 3: Cross multiply
    55,174.76x = 82,774.39 × 20,114.31
  4. Step 4: Simplify right side
    55,174.76x = 1,664,949,740.52
  5. Step 5: Solve for x
    x = 1,664,949,740.52/55,174.76
  6. Step 6: Final answer
    x = 30,175.93

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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.