Home / 78,448.23-108,274.23-49,802.04

Finding the Fourth Proportional to 78,448.23, 108,274.23 and 49,802.04

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Solution

The fourth proportional to 78,448.23, 108,274.23 and 49,802.04 is: 68,736.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,448.23 : 108,274.23 = 49,802.04 : x
  2. Step 2: Convert to fraction form
    78,448.23/108,274.23 = 49,802.04/x
  3. Step 3: Cross multiply
    78,448.23x = 108,274.23 × 49,802.04
  4. Step 4: Simplify right side
    78,448.23x = 5,392,277,533.43
  5. Step 5: Solve for x
    x = 5,392,277,533.43/78,448.23
  6. Step 6: Final answer
    x = 68,736.76

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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.