Home / 51,067.36-70,472.26-28,711.36

Finding the Fourth Proportional to 51,067.36, 70,472.26 and 28,711.36

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Solution

The fourth proportional to 51,067.36, 70,472.26 and 28,711.36 is: 39,621.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,067.36 : 70,472.26 = 28,711.36 : x
  2. Step 2: Convert to fraction form
    51,067.36/70,472.26 = 28,711.36/x
  3. Step 3: Cross multiply
    51,067.36x = 70,472.26 × 28,711.36
  4. Step 4: Simplify right side
    51,067.36x = 2,023,354,426.87
  5. Step 5: Solve for x
    x = 2,023,354,426.87/51,067.36
  6. Step 6: Final answer
    x = 39,621.29

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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.