Home / 49,260.12-67,979.04-28,039.40

Finding the Fourth Proportional to 49,260.12, 67,979.04 and 28,039.40

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Solution

The fourth proportional to 49,260.12, 67,979.04 and 28,039.40 is: 38,694.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,260.12 : 67,979.04 = 28,039.40 : x
  2. Step 2: Convert to fraction form
    49,260.12/67,979.04 = 28,039.40/x
  3. Step 3: Cross multiply
    49,260.12x = 67,979.04 × 28,039.40
  4. Step 4: Simplify right side
    49,260.12x = 1,906,091,494.18
  5. Step 5: Solve for x
    x = 1,906,091,494.18/49,260.12
  6. Step 6: Final answer
    x = 38,694.41

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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.