Home / 54,280.44-74,909.76-30,405.60

Finding the Fourth Proportional to 54,280.44, 74,909.76 and 30,405.60

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Solution

The fourth proportional to 54,280.44, 74,909.76 and 30,405.60 is: 41,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,280.44 : 74,909.76 = 30,405.60 : x
  2. Step 2: Convert to fraction form
    54,280.44/74,909.76 = 30,405.60/x
  3. Step 3: Cross multiply
    54,280.44x = 74,909.76 × 30,405.60
  4. Step 4: Simplify right side
    54,280.44x = 2,277,676,198.66
  5. Step 5: Solve for x
    x = 2,277,676,198.66/54,280.44
  6. Step 6: Final answer
    x = 41,961.27

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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.