Home / 67,145.20-92,665.20-40,287.04

Finding the Fourth Proportional to 67,145.20, 92,665.20 and 40,287.04

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Solution

The fourth proportional to 67,145.20, 92,665.20 and 40,287.04 is: 55,599.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,145.20 : 92,665.20 = 40,287.04 : x
  2. Step 2: Convert to fraction form
    67,145.20/92,665.20 = 40,287.04/x
  3. Step 3: Cross multiply
    67,145.20x = 92,665.20 × 40,287.04
  4. Step 4: Simplify right side
    67,145.20x = 3,733,206,619.01
  5. Step 5: Solve for x
    x = 3,733,206,619.01/67,145.20
  6. Step 6: Final answer
    x = 55,599.01

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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.