Home / 74,208.48-102,418.20-45,923.28

Finding the Fourth Proportional to 74,208.48, 102,418.20 and 45,923.28

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Solution

The fourth proportional to 74,208.48, 102,418.20 and 45,923.28 is: 63,380.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,208.48 : 102,418.20 = 45,923.28 : x
  2. Step 2: Convert to fraction form
    74,208.48/102,418.20 = 45,923.28/x
  3. Step 3: Cross multiply
    74,208.48x = 102,418.20 × 45,923.28
  4. Step 4: Simplify right side
    74,208.48x = 4,703,379,675.70
  5. Step 5: Solve for x
    x = 4,703,379,675.70/74,208.48
  6. Step 6: Final answer
    x = 63,380.62

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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.