Home / 67,138.69-92,651.49-38,846.20

Finding the Fourth Proportional to 67,138.69, 92,651.49 and 38,846.20

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Solution

The fourth proportional to 67,138.69, 92,651.49 and 38,846.20 is: 53,607.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,138.69 : 92,651.49 = 38,846.20 : x
  2. Step 2: Convert to fraction form
    67,138.69/92,651.49 = 38,846.20/x
  3. Step 3: Cross multiply
    67,138.69x = 92,651.49 × 38,846.20
  4. Step 4: Simplify right side
    67,138.69x = 3,599,158,079.21
  5. Step 5: Solve for x
    x = 3,599,158,079.21/67,138.69
  6. Step 6: Final answer
    x = 53,607.81

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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.