Home / 74,334.25-102,579.57-40,342.80

Finding the Fourth Proportional to 74,334.25, 102,579.57 and 40,342.80

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Solution

The fourth proportional to 74,334.25, 102,579.57 and 40,342.80 is: 55,672.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,334.25 : 102,579.57 = 40,342.80 : x
  2. Step 2: Convert to fraction form
    74,334.25/102,579.57 = 40,342.80/x
  3. Step 3: Cross multiply
    74,334.25x = 102,579.57 × 40,342.80
  4. Step 4: Simplify right side
    74,334.25x = 4,138,347,076.60
  5. Step 5: Solve for x
    x = 4,138,347,076.60/74,334.25
  6. Step 6: Final answer
    x = 55,672.15

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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.