Home / 77,172.33-115,762.97-29,787.68

Finding the Fourth Proportional to 77,172.33, 115,762.97 and 29,787.68

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Solution

The fourth proportional to 77,172.33, 115,762.97 and 29,787.68 is: 44,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,172.33 : 115,762.97 = 29,787.68 : x
  2. Step 2: Convert to fraction form
    77,172.33/115,762.97 = 29,787.68/x
  3. Step 3: Cross multiply
    77,172.33x = 115,762.97 × 29,787.68
  4. Step 4: Simplify right side
    77,172.33x = 3,448,309,578.46
  5. Step 5: Solve for x
    x = 3,448,309,578.46/77,172.33
  6. Step 6: Final answer
    x = 44,683.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.