Home / 55,395.96-83,104.87-20,335.92

Finding the Fourth Proportional to 55,395.96, 83,104.87 and 20,335.92

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Solution

The fourth proportional to 55,395.96, 83,104.87 and 20,335.92 is: 30,507.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,395.96 : 83,104.87 = 20,335.92 : x
  2. Step 2: Convert to fraction form
    55,395.96/83,104.87 = 20,335.92/x
  3. Step 3: Cross multiply
    55,395.96x = 83,104.87 × 20,335.92
  4. Step 4: Simplify right side
    55,395.96x = 1,690,013,987.93
  5. Step 5: Solve for x
    x = 1,690,013,987.93/55,395.96
  6. Step 6: Final answer
    x = 30,507.89

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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.