Home / 81,186.59-121,798.34-36,826.04

Finding the Fourth Proportional to 81,186.59, 121,798.34 and 36,826.04

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Solution

The fourth proportional to 81,186.59, 121,798.34 and 36,826.04 is: 55,247.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,186.59 : 121,798.34 = 36,826.04 : x
  2. Step 2: Convert to fraction form
    81,186.59/121,798.34 = 36,826.04/x
  3. Step 3: Cross multiply
    81,186.59x = 121,798.34 × 36,826.04
  4. Step 4: Simplify right side
    81,186.59x = 4,485,350,023.85
  5. Step 5: Solve for x
    x = 4,485,350,023.85/81,186.59
  6. Step 6: Final answer
    x = 55,247.42

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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.