Home / 73,516.15-110,278.41-20,921.50

Finding the Fourth Proportional to 73,516.15, 110,278.41 and 20,921.50

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Solution

The fourth proportional to 73,516.15, 110,278.41 and 20,921.50 is: 31,383.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,516.15 : 110,278.41 = 20,921.50 : x
  2. Step 2: Convert to fraction form
    73,516.15/110,278.41 = 20,921.50/x
  3. Step 3: Cross multiply
    73,516.15x = 110,278.41 × 20,921.50
  4. Step 4: Simplify right side
    73,516.15x = 2,307,189,754.82
  5. Step 5: Solve for x
    x = 2,307,189,754.82/73,516.15
  6. Step 6: Final answer
    x = 31,383.44

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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.