Home / 80,558.04-120,839.45-38,442.60

Finding the Fourth Proportional to 80,558.04, 120,839.45 and 38,442.60

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Solution

The fourth proportional to 80,558.04, 120,839.45 and 38,442.60 is: 57,665.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,558.04 : 120,839.45 = 38,442.60 : x
  2. Step 2: Convert to fraction form
    80,558.04/120,839.45 = 38,442.60/x
  3. Step 3: Cross multiply
    80,558.04x = 120,839.45 × 38,442.60
  4. Step 4: Simplify right side
    80,558.04x = 4,645,382,448.36
  5. Step 5: Solve for x
    x = 4,645,382,448.36/80,558.04
  6. Step 6: Final answer
    x = 57,665.04

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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.