Home / 61,436.20-84,759.78-40,227.56

Finding the Fourth Proportional to 61,436.20, 84,759.78 and 40,227.56

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Solution

The fourth proportional to 61,436.20, 84,759.78 and 40,227.56 is: 55,499.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,436.20 : 84,759.78 = 40,227.56 : x
  2. Step 2: Convert to fraction form
    61,436.20/84,759.78 = 40,227.56/x
  3. Step 3: Cross multiply
    61,436.20x = 84,759.78 × 40,227.56
  4. Step 4: Simplify right side
    61,436.20x = 3,409,679,135.54
  5. Step 5: Solve for x
    x = 3,409,679,135.54/61,436.20
  6. Step 6: Final answer
    x = 55,499.51

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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.