Home / 50,134.63-75,151.31-31,427.78

Finding the Fourth Proportional to 50,134.63, 75,151.31 and 31,427.78

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Solution

The fourth proportional to 50,134.63, 75,151.31 and 31,427.78 is: 47,109.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,134.63 : 75,151.31 = 31,427.78 : x
  2. Step 2: Convert to fraction form
    50,134.63/75,151.31 = 31,427.78/x
  3. Step 3: Cross multiply
    50,134.63x = 75,151.31 × 31,427.78
  4. Step 4: Simplify right side
    50,134.63x = 2,361,838,540.20
  5. Step 5: Solve for x
    x = 2,361,838,540.20/50,134.63
  6. Step 6: Final answer
    x = 47,109.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.