Home / 57,067.32-78,751.44-31,574.64

Finding the Fourth Proportional to 57,067.32, 78,751.44 and 31,574.64

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Solution

The fourth proportional to 57,067.32, 78,751.44 and 31,574.64 is: 43,572.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,067.32 : 78,751.44 = 31,574.64 : x
  2. Step 2: Convert to fraction form
    57,067.32/78,751.44 = 31,574.64/x
  3. Step 3: Cross multiply
    57,067.32x = 78,751.44 × 31,574.64
  4. Step 4: Simplify right side
    57,067.32x = 2,486,548,367.48
  5. Step 5: Solve for x
    x = 2,486,548,367.48/57,067.32
  6. Step 6: Final answer
    x = 43,572.19

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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.