Home / 74,149.32-102,249.36-51,513.96

Finding the Fourth Proportional to 74,149.32, 102,249.36 and 51,513.96

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Solution

The fourth proportional to 74,149.32, 102,249.36 and 51,513.96 is: 71,035.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,149.32 : 102,249.36 = 51,513.96 : x
  2. Step 2: Convert to fraction form
    74,149.32/102,249.36 = 51,513.96/x
  3. Step 3: Cross multiply
    74,149.32x = 102,249.36 × 51,513.96
  4. Step 4: Simplify right side
    74,149.32x = 5,267,269,441.07
  5. Step 5: Solve for x
    x = 5,267,269,441.07/74,149.32
  6. Step 6: Final answer
    x = 71,035.98

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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.