Home / 86,309.09-129,479.97-33,715.25

Finding the Fourth Proportional to 86,309.09, 129,479.97 and 33,715.25

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Solution

The fourth proportional to 86,309.09, 129,479.97 and 33,715.25 is: 50,579.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,309.09 : 129,479.97 = 33,715.25 : x
  2. Step 2: Convert to fraction form
    86,309.09/129,479.97 = 33,715.25/x
  3. Step 3: Cross multiply
    86,309.09x = 129,479.97 × 33,715.25
  4. Step 4: Simplify right side
    86,309.09x = 4,365,449,558.54
  5. Step 5: Solve for x
    x = 4,365,449,558.54/86,309.09
  6. Step 6: Final answer
    x = 50,579.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.