Home / 55,577.86-83,375.45-18,129.21

Finding the Fourth Proportional to 55,577.86, 83,375.45 and 18,129.21

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Solution

The fourth proportional to 55,577.86, 83,375.45 and 18,129.21 is: 27,196.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,577.86 : 83,375.45 = 18,129.21 : x
  2. Step 2: Convert to fraction form
    55,577.86/83,375.45 = 18,129.21/x
  3. Step 3: Cross multiply
    55,577.86x = 83,375.45 × 18,129.21
  4. Step 4: Simplify right side
    55,577.86x = 1,511,531,041.89
  5. Step 5: Solve for x
    x = 1,511,531,041.89/55,577.86
  6. Step 6: Final answer
    x = 27,196.64

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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.