Home / 80,128.48-120,179.04-33,368.80

Finding the Fourth Proportional to 80,128.48, 120,179.04 and 33,368.80

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Solution

The fourth proportional to 80,128.48, 120,179.04 and 33,368.80 is: 50,047.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,128.48 : 120,179.04 = 33,368.80 : x
  2. Step 2: Convert to fraction form
    80,128.48/120,179.04 = 33,368.80/x
  3. Step 3: Cross multiply
    80,128.48x = 120,179.04 × 33,368.80
  4. Step 4: Simplify right side
    80,128.48x = 4,010,230,349.95
  5. Step 5: Solve for x
    x = 4,010,230,349.95/80,128.48
  6. Step 6: Final answer
    x = 50,047.50

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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.