Home / 51,039.09-70,435.47-28,067.72

Finding the Fourth Proportional to 51,039.09, 70,435.47 and 28,067.72

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Solution

The fourth proportional to 51,039.09, 70,435.47 and 28,067.72 is: 38,734.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,039.09 : 70,435.47 = 28,067.72 : x
  2. Step 2: Convert to fraction form
    51,039.09/70,435.47 = 28,067.72/x
  3. Step 3: Cross multiply
    51,039.09x = 70,435.47 × 28,067.72
  4. Step 4: Simplify right side
    51,039.09x = 1,976,962,697.85
  5. Step 5: Solve for x
    x = 1,976,962,697.85/51,039.09
  6. Step 6: Final answer
    x = 38,734.29

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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.