Home / 50,979.22-70,349.04-28,319.78

Finding the Fourth Proportional to 50,979.22, 70,349.04 and 28,319.78

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Solution

The fourth proportional to 50,979.22, 70,349.04 and 28,319.78 is: 39,080.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,979.22 : 70,349.04 = 28,319.78 : x
  2. Step 2: Convert to fraction form
    50,979.22/70,349.04 = 28,319.78/x
  3. Step 3: Cross multiply
    50,979.22x = 70,349.04 × 28,319.78
  4. Step 4: Simplify right side
    50,979.22x = 1,992,269,511.88
  5. Step 5: Solve for x
    x = 1,992,269,511.88/50,979.22
  6. Step 6: Final answer
    x = 39,080.03

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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.