Home / 79,640.33-109,901.63-43,340.23

Finding the Fourth Proportional to 79,640.33, 109,901.63 and 43,340.23

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Solution

The fourth proportional to 79,640.33, 109,901.63 and 43,340.23 is: 59,808.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,640.33 : 109,901.63 = 43,340.23 : x
  2. Step 2: Convert to fraction form
    79,640.33/109,901.63 = 43,340.23/x
  3. Step 3: Cross multiply
    79,640.33x = 109,901.63 × 43,340.23
  4. Step 4: Simplify right side
    79,640.33x = 4,763,161,921.57
  5. Step 5: Solve for x
    x = 4,763,161,921.57/79,640.33
  6. Step 6: Final answer
    x = 59,808.42

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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.