Home / 77,172.54-115,768.05-27,242.34

Finding the Fourth Proportional to 77,172.54, 115,768.05 and 27,242.34

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Solution

The fourth proportional to 77,172.54, 115,768.05 and 27,242.34 is: 40,866.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,172.54 : 115,768.05 = 27,242.34 : x
  2. Step 2: Convert to fraction form
    77,172.54/115,768.05 = 27,242.34/x
  3. Step 3: Cross multiply
    77,172.54x = 115,768.05 × 27,242.34
  4. Step 4: Simplify right side
    77,172.54x = 3,153,792,579.24
  5. Step 5: Solve for x
    x = 3,153,792,579.24/77,172.54
  6. Step 6: Final answer
    x = 40,866.77

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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.