Home / 74,408.96-102,685.47-40,418.10

Finding the Fourth Proportional to 74,408.96, 102,685.47 and 40,418.10

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Solution

The fourth proportional to 74,408.96, 102,685.47 and 40,418.10 is: 55,777.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,408.96 : 102,685.47 = 40,418.10 : x
  2. Step 2: Convert to fraction form
    74,408.96/102,685.47 = 40,418.10/x
  3. Step 3: Cross multiply
    74,408.96x = 102,685.47 × 40,418.10
  4. Step 4: Simplify right side
    74,408.96x = 4,150,351,595.01
  5. Step 5: Solve for x
    x = 4,150,351,595.01/74,408.96
  6. Step 6: Final answer
    x = 55,777.58

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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.