Home / 71,461.20-98,609.49-39,629.43

Finding the Fourth Proportional to 71,461.20, 98,609.49 and 39,629.43

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Solution

The fourth proportional to 71,461.20, 98,609.49 and 39,629.43 is: 54,684.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,461.20 : 98,609.49 = 39,629.43 : x
  2. Step 2: Convert to fraction form
    71,461.20/98,609.49 = 39,629.43/x
  3. Step 3: Cross multiply
    71,461.20x = 98,609.49 × 39,629.43
  4. Step 4: Simplify right side
    71,461.20x = 3,907,837,881.29
  5. Step 5: Solve for x
    x = 3,907,837,881.29/71,461.20
  6. Step 6: Final answer
    x = 54,684.75

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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.