Home / 71,515.22-98,693.64-43,215.44

Finding the Fourth Proportional to 71,515.22, 98,693.64 and 43,215.44

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Solution

The fourth proportional to 71,515.22, 98,693.64 and 43,215.44 is: 59,638.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,515.22 : 98,693.64 = 43,215.44 : x
  2. Step 2: Convert to fraction form
    71,515.22/98,693.64 = 43,215.44/x
  3. Step 3: Cross multiply
    71,515.22x = 98,693.64 × 43,215.44
  4. Step 4: Simplify right side
    71,515.22x = 4,265,089,077.80
  5. Step 5: Solve for x
    x = 4,265,089,077.80/71,515.22
  6. Step 6: Final answer
    x = 59,638.90

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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.