Home / 78,949.14-118,343.88-33,999.80

Finding the Fourth Proportional to 78,949.14, 118,343.88 and 33,999.80

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Solution

The fourth proportional to 78,949.14, 118,343.88 and 33,999.80 is: 50,965.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,949.14 : 118,343.88 = 33,999.80 : x
  2. Step 2: Convert to fraction form
    78,949.14/118,343.88 = 33,999.80/x
  3. Step 3: Cross multiply
    78,949.14x = 118,343.88 × 33,999.80
  4. Step 4: Simplify right side
    78,949.14x = 4,023,668,251.22
  5. Step 5: Solve for x
    x = 4,023,668,251.22/78,949.14
  6. Step 6: Final answer
    x = 50,965.32

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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.