Home / 67,282.20-92,844-38,989.68

Finding the Fourth Proportional to 67,282.20, 92,844 and 38,989.68

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Solution

The fourth proportional to 67,282.20, 92,844 and 38,989.68 is: 53,802.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,282.20 : 92,844 = 38,989.68 : x
  2. Step 2: Convert to fraction form
    67,282.20/92,844 = 38,989.68/x
  3. Step 3: Cross multiply
    67,282.20x = 92,844 × 38,989.68
  4. Step 4: Simplify right side
    67,282.20x = 3,619,957,849.92
  5. Step 5: Solve for x
    x = 3,619,957,849.92/67,282.20
  6. Step 6: Final answer
    x = 53,802.61

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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.