Home / 45,629.20-68,443.24-14,464.40

Finding the Fourth Proportional to 45,629.20, 68,443.24 and 14,464.40

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Solution

The fourth proportional to 45,629.20, 68,443.24 and 14,464.40 is: 21,696.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,629.20 : 68,443.24 = 14,464.40 : x
  2. Step 2: Convert to fraction form
    45,629.20/68,443.24 = 14,464.40/x
  3. Step 3: Cross multiply
    45,629.20x = 68,443.24 × 14,464.40
  4. Step 4: Simplify right side
    45,629.20x = 989,990,400.66
  5. Step 5: Solve for x
    x = 989,990,400.66/45,629.20
  6. Step 6: Final answer
    x = 21,696.42

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1.5x scale

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.