Home / 79,721.44-109,993.70-55,495.26

Finding the Fourth Proportional to 79,721.44, 109,993.70 and 55,495.26

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Solution

The fourth proportional to 79,721.44, 109,993.70 and 55,495.26 is: 76,568.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,721.44 : 109,993.70 = 55,495.26 : x
  2. Step 2: Convert to fraction form
    79,721.44/109,993.70 = 55,495.26/x
  3. Step 3: Cross multiply
    79,721.44x = 109,993.70 × 55,495.26
  4. Step 4: Simplify right side
    79,721.44x = 6,104,129,118.60
  5. Step 5: Solve for x
    x = 6,104,129,118.60/79,721.44
  6. Step 6: Final answer
    x = 76,568.23

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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.