Home / 54,279.58-74,905.38-30,406.48

Finding the Fourth Proportional to 54,279.58, 74,905.38 and 30,406.48

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Solution

The fourth proportional to 54,279.58, 74,905.38 and 30,406.48 is: 41,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,279.58 : 74,905.38 = 30,406.48 : x
  2. Step 2: Convert to fraction form
    54,279.58/74,905.38 = 30,406.48/x
  3. Step 3: Cross multiply
    54,279.58x = 74,905.38 × 30,406.48
  4. Step 4: Simplify right side
    54,279.58x = 2,277,608,938.86
  5. Step 5: Solve for x
    x = 2,277,608,938.86/54,279.58
  6. Step 6: Final answer
    x = 41,960.70

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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.