Home / 74,619.54-102,975.60-40,628.28

Finding the Fourth Proportional to 74,619.54, 102,975.60 and 40,628.28

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Solution

The fourth proportional to 74,619.54, 102,975.60 and 40,628.28 is: 56,067.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,619.54 : 102,975.60 = 40,628.28 : x
  2. Step 2: Convert to fraction form
    74,619.54/102,975.60 = 40,628.28/x
  3. Step 3: Cross multiply
    74,619.54x = 102,975.60 × 40,628.28
  4. Step 4: Simplify right side
    74,619.54x = 4,183,721,509.97
  5. Step 5: Solve for x
    x = 4,183,721,509.97/74,619.54
  6. Step 6: Final answer
    x = 56,067.37

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1.5x scale

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.