Home / 50,825.78-70,143.27-30,687.56

Finding the Fourth Proportional to 50,825.78, 70,143.27 and 30,687.56

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Solution

The fourth proportional to 50,825.78, 70,143.27 and 30,687.56 is: 42,351.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,825.78 : 70,143.27 = 30,687.56 : x
  2. Step 2: Convert to fraction form
    50,825.78/70,143.27 = 30,687.56/x
  3. Step 3: Cross multiply
    50,825.78x = 70,143.27 × 30,687.56
  4. Step 4: Simplify right side
    50,825.78x = 2,152,525,806.72
  5. Step 5: Solve for x
    x = 2,152,525,806.72/50,825.78
  6. Step 6: Final answer
    x = 42,351.06

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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.