Home / 66,092.31-91,169.21-42,192.05

Finding the Fourth Proportional to 66,092.31, 91,169.21 and 42,192.05

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Solution

The fourth proportional to 66,092.31, 91,169.21 and 42,192.05 is: 58,200.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,092.31 : 91,169.21 = 42,192.05 : x
  2. Step 2: Convert to fraction form
    66,092.31/91,169.21 = 42,192.05/x
  3. Step 3: Cross multiply
    66,092.31x = 91,169.21 × 42,192.05
  4. Step 4: Simplify right side
    66,092.31x = 3,846,615,410.93
  5. Step 5: Solve for x
    x = 3,846,615,410.93/66,092.31
  6. Step 6: Final answer
    x = 58,200.65

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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.