Home / 55,080.25-82,657.31-20,019.91

Finding the Fourth Proportional to 55,080.25, 82,657.31 and 20,019.91

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Solution

The fourth proportional to 55,080.25, 82,657.31 and 20,019.91 is: 30,043.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,080.25 : 82,657.31 = 20,019.91 : x
  2. Step 2: Convert to fraction form
    55,080.25/82,657.31 = 20,019.91/x
  3. Step 3: Cross multiply
    55,080.25x = 82,657.31 × 20,019.91
  4. Step 4: Simplify right side
    55,080.25x = 1,654,791,867.89
  5. Step 5: Solve for x
    x = 1,654,791,867.89/55,080.25
  6. Step 6: Final answer
    x = 30,043.29

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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.