Home / 83,704.77-115,513.38-45,979.02

Finding the Fourth Proportional to 83,704.77, 115,513.38 and 45,979.02

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Solution

The fourth proportional to 83,704.77, 115,513.38 and 45,979.02 is: 63,451.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,704.77 : 115,513.38 = 45,979.02 : x
  2. Step 2: Convert to fraction form
    83,704.77/115,513.38 = 45,979.02/x
  3. Step 3: Cross multiply
    83,704.77x = 115,513.38 × 45,979.02
  4. Step 4: Simplify right side
    83,704.77x = 5,311,192,009.29
  5. Step 5: Solve for x
    x = 5,311,192,009.29/83,704.77
  6. Step 6: Final answer
    x = 63,451.49

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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.