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Finding the Fourth Proportional to 74,096.80, 102,252.78 and 40,104.60

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Solution

The fourth proportional to 74,096.80, 102,252.78 and 40,104.60 is: 55,343.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,096.80 : 102,252.78 = 40,104.60 : x
  2. Step 2: Convert to fraction form
    74,096.80/102,252.78 = 40,104.60/x
  3. Step 3: Cross multiply
    74,096.80x = 102,252.78 × 40,104.60
  4. Step 4: Simplify right side
    74,096.80x = 4,100,806,840.79
  5. Step 5: Solve for x
    x = 4,100,806,840.79/74,096.80
  6. Step 6: Final answer
    x = 55,343.91

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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.