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Finding the Fourth Proportional to 67,393.30, 92,999.42 and 40,530.58

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Solution

The fourth proportional to 67,393.30, 92,999.42 and 40,530.58 is: 55,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,393.30 : 92,999.42 = 40,530.58 : x
  2. Step 2: Convert to fraction form
    67,393.30/92,999.42 = 40,530.58/x
  3. Step 3: Cross multiply
    67,393.30x = 92,999.42 × 40,530.58
  4. Step 4: Simplify right side
    67,393.30x = 3,769,320,432.26
  5. Step 5: Solve for x
    x = 3,769,320,432.26/67,393.30
  6. Step 6: Final answer
    x = 55,930.20

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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.