Home / 54,162.40-74,743.60-30,288.80

Finding the Fourth Proportional to 54,162.40, 74,743.60 and 30,288.80

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Solution

The fourth proportional to 54,162.40, 74,743.60 and 30,288.80 is: 41,798.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,162.40 : 74,743.60 = 30,288.80 : x
  2. Step 2: Convert to fraction form
    54,162.40/74,743.60 = 30,288.80/x
  3. Step 3: Cross multiply
    54,162.40x = 74,743.60 × 30,288.80
  4. Step 4: Simplify right side
    54,162.40x = 2,263,893,951.68
  5. Step 5: Solve for x
    x = 2,263,893,951.68/54,162.40
  6. Step 6: Final answer
    x = 41,798.26

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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.