Home / 56,986.87-78,639.58-33,111.66

Finding the Fourth Proportional to 56,986.87, 78,639.58 and 33,111.66

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Solution

The fourth proportional to 56,986.87, 78,639.58 and 33,111.66 is: 45,692.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,986.87 : 78,639.58 = 33,111.66 : x
  2. Step 2: Convert to fraction form
    56,986.87/78,639.58 = 33,111.66/x
  3. Step 3: Cross multiply
    56,986.87x = 78,639.58 × 33,111.66
  4. Step 4: Simplify right side
    56,986.87x = 2,603,886,952.72
  5. Step 5: Solve for x
    x = 2,603,886,952.72/56,986.87
  6. Step 6: Final answer
    x = 45,692.75

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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.