Home / 55,441.26-83,159.19-20,378.70

Finding the Fourth Proportional to 55,441.26, 83,159.19 and 20,378.70

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Solution

The fourth proportional to 55,441.26, 83,159.19 and 20,378.70 is: 30,567.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,441.26 : 83,159.19 = 20,378.70 : x
  2. Step 2: Convert to fraction form
    55,441.26/83,159.19 = 20,378.70/x
  3. Step 3: Cross multiply
    55,441.26x = 83,159.19 × 20,378.70
  4. Step 4: Simplify right side
    55,441.26x = 1,694,676,185.25
  5. Step 5: Solve for x
    x = 1,694,676,185.25/55,441.26
  6. Step 6: Final answer
    x = 30,567.06

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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.