Home / 53,407.13-80,128.22-21,843.72

Finding the Fourth Proportional to 53,407.13, 80,128.22 and 21,843.72

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Solution

The fourth proportional to 53,407.13, 80,128.22 and 21,843.72 is: 32,772.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,407.13 : 80,128.22 = 21,843.72 : x
  2. Step 2: Convert to fraction form
    53,407.13/80,128.22 = 21,843.72/x
  3. Step 3: Cross multiply
    53,407.13x = 80,128.22 × 21,843.72
  4. Step 4: Simplify right side
    53,407.13x = 1,750,298,415.43
  5. Step 5: Solve for x
    x = 1,750,298,415.43/53,407.13
  6. Step 6: Final answer
    x = 32,772.75

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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.