Home / 51,067.54-70,472.20-28,405.76

Finding the Fourth Proportional to 51,067.54, 70,472.20 and 28,405.76

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Solution

The fourth proportional to 51,067.54, 70,472.20 and 28,405.76 is: 39,199.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,067.54 : 70,472.20 = 28,405.76 : x
  2. Step 2: Convert to fraction form
    51,067.54/70,472.20 = 28,405.76/x
  3. Step 3: Cross multiply
    51,067.54x = 70,472.20 × 28,405.76
  4. Step 4: Simplify right side
    51,067.54x = 2,001,816,399.87
  5. Step 5: Solve for x
    x = 2,001,816,399.87/51,067.54
  6. Step 6: Final answer
    x = 39,199.39

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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.