Home / 67,135.50-92,649.69-40,268.21

Finding the Fourth Proportional to 67,135.50, 92,649.69 and 40,268.21

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Solution

The fourth proportional to 67,135.50, 92,649.69 and 40,268.21 is: 55,571.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,135.50 : 92,649.69 = 40,268.21 : x
  2. Step 2: Convert to fraction form
    67,135.50/92,649.69 = 40,268.21/x
  3. Step 3: Cross multiply
    67,135.50x = 92,649.69 × 40,268.21
  4. Step 4: Simplify right side
    67,135.50x = 3,730,836,710.11
  5. Step 5: Solve for x
    x = 3,730,836,710.11/67,135.50
  6. Step 6: Final answer
    x = 55,571.74

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1.5x scale

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.