Home / 90,907.21-125,460.67-50,620.96

Finding the Fourth Proportional to 90,907.21, 125,460.67 and 50,620.96

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Solution

The fourth proportional to 90,907.21, 125,460.67 and 50,620.96 is: 69,861.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,907.21 : 125,460.67 = 50,620.96 : x
  2. Step 2: Convert to fraction form
    90,907.21/125,460.67 = 50,620.96/x
  3. Step 3: Cross multiply
    90,907.21x = 125,460.67 × 50,620.96
  4. Step 4: Simplify right side
    90,907.21x = 6,350,940,001.63
  5. Step 5: Solve for x
    x = 6,350,940,001.63/90,907.21
  6. Step 6: Final answer
    x = 69,861.78

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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.