Home / 79,480.09-109,636.90-49,620.25

Finding the Fourth Proportional to 79,480.09, 109,636.90 and 49,620.25

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Solution

The fourth proportional to 79,480.09, 109,636.90 and 49,620.25 is: 68,447.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,480.09 : 109,636.90 = 49,620.25 : x
  2. Step 2: Convert to fraction form
    79,480.09/109,636.90 = 49,620.25/x
  3. Step 3: Cross multiply
    79,480.09x = 109,636.90 × 49,620.25
  4. Step 4: Simplify right side
    79,480.09x = 5,440,210,387.23
  5. Step 5: Solve for x
    x = 5,440,210,387.23/79,480.09
  6. Step 6: Final answer
    x = 68,447.46

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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.