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Finding the Fourth Proportional to 55,179.36, 82,719.36 and 20,094.12

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Solution

The fourth proportional to 55,179.36, 82,719.36 and 20,094.12 is: 30,123.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,179.36 : 82,719.36 = 20,094.12 : x
  2. Step 2: Convert to fraction form
    55,179.36/82,719.36 = 20,094.12/x
  3. Step 3: Cross multiply
    55,179.36x = 82,719.36 × 20,094.12
  4. Step 4: Simplify right side
    55,179.36x = 1,662,172,746.16
  5. Step 5: Solve for x
    x = 1,662,172,746.16/55,179.36
  6. Step 6: Final answer
    x = 30,123.09

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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.