Home / 71,467.09-98,621.27-39,635.30

Finding the Fourth Proportional to 71,467.09, 98,621.27 and 39,635.30

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Solution

The fourth proportional to 71,467.09, 98,621.27 and 39,635.30 is: 54,694.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,467.09 : 98,621.27 = 39,635.30 : x
  2. Step 2: Convert to fraction form
    71,467.09/98,621.27 = 39,635.30/x
  3. Step 3: Cross multiply
    71,467.09x = 98,621.27 × 39,635.30
  4. Step 4: Simplify right side
    71,467.09x = 3,908,883,622.83
  5. Step 5: Solve for x
    x = 3,908,883,622.83/71,467.09
  6. Step 6: Final answer
    x = 54,694.88

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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.