Home / 49,912.52-74,900.88-19,921.60

Finding the Fourth Proportional to 49,912.52, 74,900.88 and 19,921.60

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Solution

The fourth proportional to 49,912.52, 74,900.88 and 19,921.60 is: 29,895.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,912.52 : 74,900.88 = 19,921.60 : x
  2. Step 2: Convert to fraction form
    49,912.52/74,900.88 = 19,921.60/x
  3. Step 3: Cross multiply
    49,912.52x = 74,900.88 × 19,921.60
  4. Step 4: Simplify right side
    49,912.52x = 1,492,145,371.01
  5. Step 5: Solve for x
    x = 1,492,145,371.01/49,912.52
  6. Step 6: Final answer
    x = 29,895.21

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1.5x scale

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.