Home / 78,329.26-117,519.14-36,236.91

Finding the Fourth Proportional to 78,329.26, 117,519.14 and 36,236.91

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Solution

The fourth proportional to 78,329.26, 117,519.14 and 36,236.91 is: 54,367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,329.26 : 117,519.14 = 36,236.91 : x
  2. Step 2: Convert to fraction form
    78,329.26/117,519.14 = 36,236.91/x
  3. Step 3: Cross multiply
    78,329.26x = 117,519.14 × 36,236.91
  4. Step 4: Simplify right side
    78,329.26x = 4,258,530,499.46
  5. Step 5: Solve for x
    x = 4,258,530,499.46/78,329.26
  6. Step 6: Final answer
    x = 54,367.05

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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.