Home / 78,263.20-117,395.32-22,103.10

Finding the Fourth Proportional to 78,263.20, 117,395.32 and 22,103.10

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Solution

The fourth proportional to 78,263.20, 117,395.32 and 22,103.10 is: 33,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,263.20 : 117,395.32 = 22,103.10 : x
  2. Step 2: Convert to fraction form
    78,263.20/117,395.32 = 22,103.10/x
  3. Step 3: Cross multiply
    78,263.20x = 117,395.32 × 22,103.10
  4. Step 4: Simplify right side
    78,263.20x = 2,594,800,497.49
  5. Step 5: Solve for x
    x = 2,594,800,497.49/78,263.20
  6. Step 6: Final answer
    x = 33,154.80

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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.