Home / 49,821.08-74,751.60-20,241.20

Finding the Fourth Proportional to 49,821.08, 74,751.60 and 20,241.20

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Solution

The fourth proportional to 49,821.08, 74,751.60 and 20,241.20 is: 30,369.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,821.08 : 74,751.60 = 20,241.20 : x
  2. Step 2: Convert to fraction form
    49,821.08/74,751.60 = 20,241.20/x
  3. Step 3: Cross multiply
    49,821.08x = 74,751.60 × 20,241.20
  4. Step 4: Simplify right side
    49,821.08x = 1,513,062,085.92
  5. Step 5: Solve for x
    x = 1,513,062,085.92/49,821.08
  6. Step 6: Final answer
    x = 30,369.92

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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.