Home / 78,331.87-117,514.08-35,616.94

Finding the Fourth Proportional to 78,331.87, 117,514.08 and 35,616.94

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Solution

The fourth proportional to 78,331.87, 117,514.08 and 35,616.94 is: 53,432.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,331.87 : 117,514.08 = 35,616.94 : x
  2. Step 2: Convert to fraction form
    78,331.87/117,514.08 = 35,616.94/x
  3. Step 3: Cross multiply
    78,331.87x = 117,514.08 × 35,616.94
  4. Step 4: Simplify right side
    78,331.87x = 4,185,491,936.52
  5. Step 5: Solve for x
    x = 4,185,491,936.52/78,331.87
  6. Step 6: Final answer
    x = 53,432.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.