Home / 55,129.88-82,682.37-15,686.12

Finding the Fourth Proportional to 55,129.88, 82,682.37 and 15,686.12

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Solution

The fourth proportional to 55,129.88, 82,682.37 and 15,686.12 is: 23,525.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,129.88 : 82,682.37 = 15,686.12 : x
  2. Step 2: Convert to fraction form
    55,129.88/82,682.37 = 15,686.12/x
  3. Step 3: Cross multiply
    55,129.88x = 82,682.37 × 15,686.12
  4. Step 4: Simplify right side
    55,129.88x = 1,296,965,577.70
  5. Step 5: Solve for x
    x = 1,296,965,577.70/55,129.88
  6. Step 6: Final answer
    x = 23,525.64

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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.