Home / 65,219.04-97,778.61-20,819.43

Finding the Fourth Proportional to 65,219.04, 97,778.61 and 20,819.43

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Solution

The fourth proportional to 65,219.04, 97,778.61 and 20,819.43 is: 31,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,219.04 : 97,778.61 = 20,819.43 : x
  2. Step 2: Convert to fraction form
    65,219.04/97,778.61 = 20,819.43/x
  3. Step 3: Cross multiply
    65,219.04x = 97,778.61 × 20,819.43
  4. Step 4: Simplify right side
    65,219.04x = 2,035,694,926.39
  5. Step 5: Solve for x
    x = 2,035,694,926.39/65,219.04
  6. Step 6: Final answer
    x = 31,213.20

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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.