Home / 55,660.28-76,816.52-31,790.52

Finding the Fourth Proportional to 55,660.28, 76,816.52 and 31,790.52

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Solution

The fourth proportional to 55,660.28, 76,816.52 and 31,790.52 is: 43,873.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,660.28 : 76,816.52 = 31,790.52 : x
  2. Step 2: Convert to fraction form
    55,660.28/76,816.52 = 31,790.52/x
  3. Step 3: Cross multiply
    55,660.28x = 76,816.52 × 31,790.52
  4. Step 4: Simplify right side
    55,660.28x = 2,442,037,115.39
  5. Step 5: Solve for x
    x = 2,442,037,115.39/55,660.28
  6. Step 6: Final answer
    x = 43,873.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.