Home / 71,620.17-98,835.80-39,792.03

Finding the Fourth Proportional to 71,620.17, 98,835.80 and 39,792.03

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Solution

The fourth proportional to 71,620.17, 98,835.80 and 39,792.03 is: 54,912.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,620.17 : 98,835.80 = 39,792.03 : x
  2. Step 2: Convert to fraction form
    71,620.17/98,835.80 = 39,792.03/x
  3. Step 3: Cross multiply
    71,620.17x = 98,835.80 × 39,792.03
  4. Step 4: Simplify right side
    71,620.17x = 3,932,876,919.71
  5. Step 5: Solve for x
    x = 3,932,876,919.71/71,620.17
  6. Step 6: Final answer
    x = 54,912.98

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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.