Home / 42,791.67-64,134.05-20,599.11

Finding the Fourth Proportional to 42,791.67, 64,134.05 and 20,599.11

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Solution

The fourth proportional to 42,791.67, 64,134.05 and 20,599.11 is: 30,872.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,791.67 : 64,134.05 = 20,599.11 : x
  2. Step 2: Convert to fraction form
    42,791.67/64,134.05 = 20,599.11/x
  3. Step 3: Cross multiply
    42,791.67x = 64,134.05 × 20,599.11
  4. Step 4: Simplify right side
    42,791.67x = 1,321,104,247.70
  5. Step 5: Solve for x
    x = 1,321,104,247.70/42,791.67
  6. Step 6: Final answer
    x = 30,872.93

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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.