Home / 80,670.24-121,005.60-28,067.16

Finding the Fourth Proportional to 80,670.24, 121,005.60 and 28,067.16

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Solution

The fourth proportional to 80,670.24, 121,005.60 and 28,067.16 is: 42,100.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,670.24 : 121,005.60 = 28,067.16 : x
  2. Step 2: Convert to fraction form
    80,670.24/121,005.60 = 28,067.16/x
  3. Step 3: Cross multiply
    80,670.24x = 121,005.60 × 28,067.16
  4. Step 4: Simplify right side
    80,670.24x = 3,396,283,536.10
  5. Step 5: Solve for x
    x = 3,396,283,536.10/80,670.24
  6. Step 6: Final answer
    x = 42,100.82

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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.