Home / 79,208.20-109,307.29-43,399.57

Finding the Fourth Proportional to 79,208.20, 109,307.29 and 43,399.57

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Solution

The fourth proportional to 79,208.20, 109,307.29 and 43,399.57 is: 59,891.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,208.20 : 109,307.29 = 43,399.57 : x
  2. Step 2: Convert to fraction form
    79,208.20/109,307.29 = 43,399.57/x
  3. Step 3: Cross multiply
    79,208.20x = 109,307.29 × 43,399.57
  4. Step 4: Simplify right side
    79,208.20x = 4,743,888,728.83
  5. Step 5: Solve for x
    x = 4,743,888,728.83/79,208.20
  6. Step 6: Final answer
    x = 59,891.39

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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.