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Finding the Fourth Proportional to 80,268.80, 110,845.40 and 60,090.65

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Solution

The fourth proportional to 80,268.80, 110,845.40 and 60,090.65 is: 82,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,268.80 : 110,845.40 = 60,090.65 : x
  2. Step 2: Convert to fraction form
    80,268.80/110,845.40 = 60,090.65/x
  3. Step 3: Cross multiply
    80,268.80x = 110,845.40 × 60,090.65
  4. Step 4: Simplify right side
    80,268.80x = 6,660,771,280.83
  5. Step 5: Solve for x
    x = 6,660,771,280.83/80,268.80
  6. Step 6: Final answer
    x = 82,980.83

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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.