Home / 71,462.20-98,622.78-39,634.06

Finding the Fourth Proportional to 71,462.20, 98,622.78 and 39,634.06

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Solution

The fourth proportional to 71,462.20, 98,622.78 and 39,634.06 is: 54,697.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,462.20 : 98,622.78 = 39,634.06 : x
  2. Step 2: Convert to fraction form
    71,462.20/98,622.78 = 39,634.06/x
  3. Step 3: Cross multiply
    71,462.20x = 98,622.78 × 39,634.06
  4. Step 4: Simplify right side
    71,462.20x = 3,908,821,179.89
  5. Step 5: Solve for x
    x = 3,908,821,179.89/71,462.20
  6. Step 6: Final answer
    x = 54,697.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.