Home / 74,402.14-102,674.60-40,410.36

Finding the Fourth Proportional to 74,402.14, 102,674.60 and 40,410.36

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Solution

The fourth proportional to 74,402.14, 102,674.60 and 40,410.36 is: 55,766.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,402.14 : 102,674.60 = 40,410.36 : x
  2. Step 2: Convert to fraction form
    74,402.14/102,674.60 = 40,410.36/x
  3. Step 3: Cross multiply
    74,402.14x = 102,674.60 × 40,410.36
  4. Step 4: Simplify right side
    74,402.14x = 4,149,117,548.86
  5. Step 5: Solve for x
    x = 4,149,117,548.86/74,402.14
  6. Step 6: Final answer
    x = 55,766.10

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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.