Home / 71,536.83-98,720.82-39,705.72

Finding the Fourth Proportional to 71,536.83, 98,720.82 and 39,705.72

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Solution

The fourth proportional to 71,536.83, 98,720.82 and 39,705.72 is: 54,793.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,536.83 : 98,720.82 = 39,705.72 : x
  2. Step 2: Convert to fraction form
    71,536.83/98,720.82 = 39,705.72/x
  3. Step 3: Cross multiply
    71,536.83x = 98,720.82 × 39,705.72
  4. Step 4: Simplify right side
    71,536.83x = 3,919,781,237.09
  5. Step 5: Solve for x
    x = 3,919,781,237.09/71,536.83
  6. Step 6: Final answer
    x = 54,793.89

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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.