Home / 55,141.08-82,713.24-20,106.96

Finding the Fourth Proportional to 55,141.08, 82,713.24 and 20,106.96

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Solution

The fourth proportional to 55,141.08, 82,713.24 and 20,106.96 is: 30,161.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,141.08 : 82,713.24 = 20,106.96 : x
  2. Step 2: Convert to fraction form
    55,141.08/82,713.24 = 20,106.96/x
  3. Step 3: Cross multiply
    55,141.08x = 82,713.24 × 20,106.96
  4. Step 4: Simplify right side
    55,141.08x = 1,663,111,808.15
  5. Step 5: Solve for x
    x = 1,663,111,808.15/55,141.08
  6. Step 6: Final answer
    x = 30,161.03

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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.