Home / 71,537.83-98,722.20-39,706.72

Finding the Fourth Proportional to 71,537.83, 98,722.20 and 39,706.72

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Solution

The fourth proportional to 71,537.83, 98,722.20 and 39,706.72 is: 54,795.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,537.83 : 98,722.20 = 39,706.72 : x
  2. Step 2: Convert to fraction form
    71,537.83/98,722.20 = 39,706.72/x
  3. Step 3: Cross multiply
    71,537.83x = 98,722.20 × 39,706.72
  4. Step 4: Simplify right side
    71,537.83x = 3,919,934,753.18
  5. Step 5: Solve for x
    x = 3,919,934,753.18/71,537.83
  6. Step 6: Final answer
    x = 54,795.27

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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.