Home / 67,390.32-92,969.04-40,517.28

Finding the Fourth Proportional to 67,390.32, 92,969.04 and 40,517.28

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Solution

The fourth proportional to 67,390.32, 92,969.04 and 40,517.28 is: 55,896.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,390.32 : 92,969.04 = 40,517.28 : x
  2. Step 2: Convert to fraction form
    67,390.32/92,969.04 = 40,517.28/x
  3. Step 3: Cross multiply
    67,390.32x = 92,969.04 × 40,517.28
  4. Step 4: Simplify right side
    67,390.32x = 3,766,852,625.01
  5. Step 5: Solve for x
    x = 3,766,852,625.01/67,390.32
  6. Step 6: Final answer
    x = 55,896.05

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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.