Home / 74,619.56-102,972.42-40,627.46

Finding the Fourth Proportional to 74,619.56, 102,972.42 and 40,627.46

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Solution

The fourth proportional to 74,619.56, 102,972.42 and 40,627.46 is: 56,064.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,619.56 : 102,972.42 = 40,627.46 : x
  2. Step 2: Convert to fraction form
    74,619.56/102,972.42 = 40,627.46/x
  3. Step 3: Cross multiply
    74,619.56x = 102,972.42 × 40,627.46
  4. Step 4: Simplify right side
    74,619.56x = 4,183,507,359.79
  5. Step 5: Solve for x
    x = 4,183,507,359.79/74,619.56
  6. Step 6: Final answer
    x = 56,064.49

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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.