Home / 90,921.47-136,379.01-27,739.04

Finding the Fourth Proportional to 90,921.47, 136,379.01 and 27,739.04

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Solution

The fourth proportional to 90,921.47, 136,379.01 and 27,739.04 is: 41,607.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,921.47 : 136,379.01 = 27,739.04 : x
  2. Step 2: Convert to fraction form
    90,921.47/136,379.01 = 27,739.04/x
  3. Step 3: Cross multiply
    90,921.47x = 136,379.01 × 27,739.04
  4. Step 4: Simplify right side
    90,921.47x = 3,783,022,131.66
  5. Step 5: Solve for x
    x = 3,783,022,131.66/90,921.47
  6. Step 6: Final answer
    x = 41,607.58

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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.