Home / 81,031.44-111,793.64-50,818.04

Finding the Fourth Proportional to 81,031.44, 111,793.64 and 50,818.04

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Solution

The fourth proportional to 81,031.44, 111,793.64 and 50,818.04 is: 70,110.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,031.44 : 111,793.64 = 50,818.04 : x
  2. Step 2: Convert to fraction form
    81,031.44/111,793.64 = 50,818.04/x
  3. Step 3: Cross multiply
    81,031.44x = 111,793.64 × 50,818.04
  4. Step 4: Simplify right side
    81,031.44x = 5,681,133,669.27
  5. Step 5: Solve for x
    x = 5,681,133,669.27/81,031.44
  6. Step 6: Final answer
    x = 70,110.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.