Home / 49,915.12-74,850.80-18,728.52

Finding the Fourth Proportional to 49,915.12, 74,850.80 and 18,728.52

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Solution

The fourth proportional to 49,915.12, 74,850.80 and 18,728.52 is: 28,084.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,915.12 : 74,850.80 = 18,728.52 : x
  2. Step 2: Convert to fraction form
    49,915.12/74,850.80 = 18,728.52/x
  3. Step 3: Cross multiply
    49,915.12x = 74,850.80 × 18,728.52
  4. Step 4: Simplify right side
    49,915.12x = 1,401,844,704.82
  5. Step 5: Solve for x
    x = 1,401,844,704.82/49,915.12
  6. Step 6: Final answer
    x = 28,084.57

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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.