Home / 55,921.08-83,896.14-20,861

Finding the Fourth Proportional to 55,921.08, 83,896.14 and 20,861

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Solution

The fourth proportional to 55,921.08, 83,896.14 and 20,861 is: 31,296.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,921.08 : 83,896.14 = 20,861 : x
  2. Step 2: Convert to fraction form
    55,921.08/83,896.14 = 20,861/x
  3. Step 3: Cross multiply
    55,921.08x = 83,896.14 × 20,861
  4. Step 4: Simplify right side
    55,921.08x = 1,750,157,376.54
  5. Step 5: Solve for x
    x = 1,750,157,376.54/55,921.08
  6. Step 6: Final answer
    x = 31,296.92

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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.