Home / 49,212.12-67,921.99-30,823.76

Finding the Fourth Proportional to 49,212.12, 67,921.99 and 30,823.76

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Solution

The fourth proportional to 49,212.12, 67,921.99 and 30,823.76 is: 42,542.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,212.12 : 67,921.99 = 30,823.76 : x
  2. Step 2: Convert to fraction form
    49,212.12/67,921.99 = 30,823.76/x
  3. Step 3: Cross multiply
    49,212.12x = 67,921.99 × 30,823.76
  4. Step 4: Simplify right side
    49,212.12x = 2,093,611,118.48
  5. Step 5: Solve for x
    x = 2,093,611,118.48/49,212.12
  6. Step 6: Final answer
    x = 42,542.59

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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.