Home / 55,917.40-83,873.38-20,854.36

Finding the Fourth Proportional to 55,917.40, 83,873.38 and 20,854.36

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Solution

The fourth proportional to 55,917.40, 83,873.38 and 20,854.36 is: 31,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,917.40 : 83,873.38 = 20,854.36 : x
  2. Step 2: Convert to fraction form
    55,917.40/83,873.38 = 20,854.36/x
  3. Step 3: Cross multiply
    55,917.40x = 83,873.38 × 20,854.36
  4. Step 4: Simplify right side
    55,917.40x = 1,749,125,660.94
  5. Step 5: Solve for x
    x = 1,749,125,660.94/55,917.40
  6. Step 6: Final answer
    x = 31,280.53

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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.