Home / 50,729.10-70,008.22-28,067.72

Finding the Fourth Proportional to 50,729.10, 70,008.22 and 28,067.72

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Solution

The fourth proportional to 50,729.10, 70,008.22 and 28,067.72 is: 38,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,729.10 : 70,008.22 = 28,067.72 : x
  2. Step 2: Convert to fraction form
    50,729.10/70,008.22 = 28,067.72/x
  3. Step 3: Cross multiply
    50,729.10x = 70,008.22 × 28,067.72
  4. Step 4: Simplify right side
    50,729.10x = 1,964,971,221.51
  5. Step 5: Solve for x
    x = 1,964,971,221.51/50,729.10
  6. Step 6: Final answer
    x = 38,734.60

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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.