Home / 49,122.16-73,621.20-21,008.80

Finding the Fourth Proportional to 49,122.16, 73,621.20 and 21,008.80

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Solution

The fourth proportional to 49,122.16, 73,621.20 and 21,008.80 is: 31,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,122.16 : 73,621.20 = 21,008.80 : x
  2. Step 2: Convert to fraction form
    49,122.16/73,621.20 = 21,008.80/x
  3. Step 3: Cross multiply
    49,122.16x = 73,621.20 × 21,008.80
  4. Step 4: Simplify right side
    49,122.16x = 1,546,693,066.56
  5. Step 5: Solve for x
    x = 1,546,693,066.56/49,122.16
  6. Step 6: Final answer
    x = 31,486.67

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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.