Home / 55,385.21-83,090.91-17,945.22

Finding the Fourth Proportional to 55,385.21, 83,090.91 and 17,945.22

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Solution

The fourth proportional to 55,385.21, 83,090.91 and 17,945.22 is: 26,922.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,385.21 : 83,090.91 = 17,945.22 : x
  2. Step 2: Convert to fraction form
    55,385.21/83,090.91 = 17,945.22/x
  3. Step 3: Cross multiply
    55,385.21x = 83,090.91 × 17,945.22
  4. Step 4: Simplify right side
    55,385.21x = 1,491,084,659.95
  5. Step 5: Solve for x
    x = 1,491,084,659.95/55,385.21
  6. Step 6: Final answer
    x = 26,922.07

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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.