Home / 78,288.40-117,408.84-22,124.08

Finding the Fourth Proportional to 78,288.40, 117,408.84 and 22,124.08

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Solution

The fourth proportional to 78,288.40, 117,408.84 and 22,124.08 is: 33,179.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,288.40 : 117,408.84 = 22,124.08 : x
  2. Step 2: Convert to fraction form
    78,288.40/117,408.84 = 22,124.08/x
  3. Step 3: Cross multiply
    78,288.40x = 117,408.84 × 22,124.08
  4. Step 4: Simplify right side
    78,288.40x = 2,597,562,568.87
  5. Step 5: Solve for x
    x = 2,597,562,568.87/78,288.40
  6. Step 6: Final answer
    x = 33,179.41

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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.