Home / 78,050.87-117,055.78-33,667.75

Finding the Fourth Proportional to 78,050.87, 117,055.78 and 33,667.75

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Solution

The fourth proportional to 78,050.87, 117,055.78 and 33,667.75 is: 50,492.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,050.87 : 117,055.78 = 33,667.75 : x
  2. Step 2: Convert to fraction form
    78,050.87/117,055.78 = 33,667.75/x
  3. Step 3: Cross multiply
    78,050.87x = 117,055.78 × 33,667.75
  4. Step 4: Simplify right side
    78,050.87x = 3,941,004,737.10
  5. Step 5: Solve for x
    x = 3,941,004,737.10/78,050.87
  6. Step 6: Final answer
    x = 50,492.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.