Home / 74,838.28-103,276.88-55,734.48

Finding the Fourth Proportional to 74,838.28, 103,276.88 and 55,734.48

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Solution

The fourth proportional to 74,838.28, 103,276.88 and 55,734.48 is: 76,913.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,838.28 : 103,276.88 = 55,734.48 : x
  2. Step 2: Convert to fraction form
    74,838.28/103,276.88 = 55,734.48/x
  3. Step 3: Cross multiply
    74,838.28x = 103,276.88 × 55,734.48
  4. Step 4: Simplify right side
    74,838.28x = 5,756,083,202.82
  5. Step 5: Solve for x
    x = 5,756,083,202.82/74,838.28
  6. Step 6: Final answer
    x = 76,913.62

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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.