Home / 79,199.10-109,284.39-47,356.38

Finding the Fourth Proportional to 79,199.10, 109,284.39 and 47,356.38

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Solution

The fourth proportional to 79,199.10, 109,284.39 and 47,356.38 is: 65,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,199.10 : 109,284.39 = 47,356.38 : x
  2. Step 2: Convert to fraction form
    79,199.10/109,284.39 = 47,356.38/x
  3. Step 3: Cross multiply
    79,199.10x = 109,284.39 × 47,356.38
  4. Step 4: Simplify right side
    79,199.10x = 5,175,313,100.91
  5. Step 5: Solve for x
    x = 5,175,313,100.91/79,199.10
  6. Step 6: Final answer
    x = 65,345.60

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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.