Home / 79,979.08-110,356.68-45,979.60

Finding the Fourth Proportional to 79,979.08, 110,356.68 and 45,979.60

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Solution

The fourth proportional to 79,979.08, 110,356.68 and 45,979.60 is: 63,443.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,979.08 : 110,356.68 = 45,979.60 : x
  2. Step 2: Convert to fraction form
    79,979.08/110,356.68 = 45,979.60/x
  3. Step 3: Cross multiply
    79,979.08x = 110,356.68 × 45,979.60
  4. Step 4: Simplify right side
    79,979.08x = 5,074,156,003.73
  5. Step 5: Solve for x
    x = 5,074,156,003.73/79,979.08
  6. Step 6: Final answer
    x = 63,443.54

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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.