Home / 74,625.27-102,977.64-42,360.54

Finding the Fourth Proportional to 74,625.27, 102,977.64 and 42,360.54

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Solution

The fourth proportional to 74,625.27, 102,977.64 and 42,360.54 is: 58,454.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,625.27 : 102,977.64 = 42,360.54 : x
  2. Step 2: Convert to fraction form
    74,625.27/102,977.64 = 42,360.54/x
  3. Step 3: Cross multiply
    74,625.27x = 102,977.64 × 42,360.54
  4. Step 4: Simplify right side
    74,625.27x = 4,362,188,438.33
  5. Step 5: Solve for x
    x = 4,362,188,438.33/74,625.27
  6. Step 6: Final answer
    x = 58,454.57

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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.