Home / 79,317.54-109,436.04-51,039.66

Finding the Fourth Proportional to 79,317.54, 109,436.04 and 51,039.66

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Solution

The fourth proportional to 79,317.54, 109,436.04 and 51,039.66 is: 70,420.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,317.54 : 109,436.04 = 51,039.66 : x
  2. Step 2: Convert to fraction form
    79,317.54/109,436.04 = 51,039.66/x
  3. Step 3: Cross multiply
    79,317.54x = 109,436.04 × 51,039.66
  4. Step 4: Simplify right side
    79,317.54x = 5,585,578,273.35
  5. Step 5: Solve for x
    x = 5,585,578,273.35/79,317.54
  6. Step 6: Final answer
    x = 70,420.47

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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.