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Finding the Fourth Proportional to 70,149.84, 96,802.76 and 39,942.48

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Solution

The fourth proportional to 70,149.84, 96,802.76 and 39,942.48 is: 55,118.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,149.84 : 96,802.76 = 39,942.48 : x
  2. Step 2: Convert to fraction form
    70,149.84/96,802.76 = 39,942.48/x
  3. Step 3: Cross multiply
    70,149.84x = 96,802.76 × 39,942.48
  4. Step 4: Simplify right side
    70,149.84x = 3,866,542,305.24
  5. Step 5: Solve for x
    x = 3,866,542,305.24/70,149.84
  6. Step 6: Final answer
    x = 55,118.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.