Home / 40,927.88-61,158.85-30,729.78

Finding the Fourth Proportional to 40,927.88, 61,158.85 and 30,729.78

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Solution

The fourth proportional to 40,927.88, 61,158.85 and 30,729.78 is: 45,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,927.88 : 61,158.85 = 30,729.78 : x
  2. Step 2: Convert to fraction form
    40,927.88/61,158.85 = 30,729.78/x
  3. Step 3: Cross multiply
    40,927.88x = 61,158.85 × 30,729.78
  4. Step 4: Simplify right side
    40,927.88x = 1,879,397,928.73
  5. Step 5: Solve for x
    x = 1,879,397,928.73/40,927.88
  6. Step 6: Final answer
    x = 45,919.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.