Home / 40,120.44-55,308.51-28,146.66

Finding the Fourth Proportional to 40,120.44, 55,308.51 and 28,146.66

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Solution

The fourth proportional to 40,120.44, 55,308.51 and 28,146.66 is: 38,801.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.44 : 55,308.51 = 28,146.66 : x
  2. Step 2: Convert to fraction form
    40,120.44/55,308.51 = 28,146.66/x
  3. Step 3: Cross multiply
    40,120.44x = 55,308.51 × 28,146.66
  4. Step 4: Simplify right side
    40,120.44x = 1,556,749,826.08
  5. Step 5: Solve for x
    x = 1,556,749,826.08/40,120.44
  6. Step 6: Final answer
    x = 38,801.91

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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.