Home / 49,808.55-74,755.35-20,247.60

Finding the Fourth Proportional to 49,808.55, 74,755.35 and 20,247.60

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Solution

The fourth proportional to 49,808.55, 74,755.35 and 20,247.60 is: 30,388.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,808.55 : 74,755.35 = 20,247.60 : x
  2. Step 2: Convert to fraction form
    49,808.55/74,755.35 = 20,247.60/x
  3. Step 3: Cross multiply
    49,808.55x = 74,755.35 × 20,247.60
  4. Step 4: Simplify right side
    49,808.55x = 1,513,616,424.66
  5. Step 5: Solve for x
    x = 1,513,616,424.66/49,808.55
  6. Step 6: Final answer
    x = 30,388.69

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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.