Home / 78,201.32-117,283.99-46,620.30

Finding the Fourth Proportional to 78,201.32, 117,283.99 and 46,620.30

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Solution

The fourth proportional to 78,201.32, 117,283.99 and 46,620.30 is: 69,919.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,201.32 : 117,283.99 = 46,620.30 : x
  2. Step 2: Convert to fraction form
    78,201.32/117,283.99 = 46,620.30/x
  3. Step 3: Cross multiply
    78,201.32x = 117,283.99 × 46,620.30
  4. Step 4: Simplify right side
    78,201.32x = 5,467,814,565.90
  5. Step 5: Solve for x
    x = 5,467,814,565.90/78,201.32
  6. Step 6: Final answer
    x = 69,919.72

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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.