Home / 80,825.04-111,449.40-55,335.60

Finding the Fourth Proportional to 80,825.04, 111,449.40 and 55,335.60

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Solution

The fourth proportional to 80,825.04, 111,449.40 and 55,335.60 is: 76,302.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,825.04 : 111,449.40 = 55,335.60 : x
  2. Step 2: Convert to fraction form
    80,825.04/111,449.40 = 55,335.60/x
  3. Step 3: Cross multiply
    80,825.04x = 111,449.40 × 55,335.60
  4. Step 4: Simplify right side
    80,825.04x = 6,167,119,418.64
  5. Step 5: Solve for x
    x = 6,167,119,418.64/80,825.04
  6. Step 6: Final answer
    x = 76,302.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.