Home / 55,945.60-83,919.52-20,878.26

Finding the Fourth Proportional to 55,945.60, 83,919.52 and 20,878.26

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Solution

The fourth proportional to 55,945.60, 83,919.52 and 20,878.26 is: 31,317.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,945.60 : 83,919.52 = 20,878.26 : x
  2. Step 2: Convert to fraction form
    55,945.60/83,919.52 = 20,878.26/x
  3. Step 3: Cross multiply
    55,945.60x = 83,919.52 × 20,878.26
  4. Step 4: Simplify right side
    55,945.60x = 1,752,093,557.64
  5. Step 5: Solve for x
    x = 1,752,093,557.64/55,945.60
  6. Step 6: Final answer
    x = 31,317.81

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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.