Home / 74,279.64-111,407.52-21,676.80

Finding the Fourth Proportional to 74,279.64, 111,407.52 and 21,676.80

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Solution

The fourth proportional to 74,279.64, 111,407.52 and 21,676.80 is: 32,511.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,279.64 : 111,407.52 = 21,676.80 : x
  2. Step 2: Convert to fraction form
    74,279.64/111,407.52 = 21,676.80/x
  3. Step 3: Cross multiply
    74,279.64x = 111,407.52 × 21,676.80
  4. Step 4: Simplify right side
    74,279.64x = 2,414,958,529.54
  5. Step 5: Solve for x
    x = 2,414,958,529.54/74,279.64
  6. Step 6: Final answer
    x = 32,511.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.