Home / 42,672.36-64,003.68-20,177.94

Finding the Fourth Proportional to 42,672.36, 64,003.68 and 20,177.94

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Solution

The fourth proportional to 42,672.36, 64,003.68 and 20,177.94 is: 30,264.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,672.36 : 64,003.68 = 20,177.94 : x
  2. Step 2: Convert to fraction form
    42,672.36/64,003.68 = 20,177.94/x
  3. Step 3: Cross multiply
    42,672.36x = 64,003.68 × 20,177.94
  4. Step 4: Simplify right side
    42,672.36x = 1,291,462,414.82
  5. Step 5: Solve for x
    x = 1,291,462,414.82/42,672.36
  6. Step 6: Final answer
    x = 30,264.61

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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.