Home / 54,221.11-74,825.13-30,347.80

Finding the Fourth Proportional to 54,221.11, 74,825.13 and 30,347.80

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Solution

The fourth proportional to 54,221.11, 74,825.13 and 30,347.80 is: 41,879.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,221.11 : 74,825.13 = 30,347.80 : x
  2. Step 2: Convert to fraction form
    54,221.11/74,825.13 = 30,347.80/x
  3. Step 3: Cross multiply
    54,221.11x = 74,825.13 × 30,347.80
  4. Step 4: Simplify right side
    54,221.11x = 2,270,778,080.21
  5. Step 5: Solve for x
    x = 2,270,778,080.21/54,221.11
  6. Step 6: Final answer
    x = 41,879.96

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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.