Home / 55,723.45-83,584.88-13,603.75

Finding the Fourth Proportional to 55,723.45, 83,584.88 and 13,603.75

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Solution

The fourth proportional to 55,723.45, 83,584.88 and 13,603.75 is: 20,405.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,723.45 : 83,584.88 = 13,603.75 : x
  2. Step 2: Convert to fraction form
    55,723.45/83,584.88 = 13,603.75/x
  3. Step 3: Cross multiply
    55,723.45x = 83,584.88 × 13,603.75
  4. Step 4: Simplify right side
    55,723.45x = 1,137,067,811.30
  5. Step 5: Solve for x
    x = 1,137,067,811.30/55,723.45
  6. Step 6: Final answer
    x = 20,405.55

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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.