Home / 45,380.25-68,081.31-14,215.50

Finding the Fourth Proportional to 45,380.25, 68,081.31 and 14,215.50

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Solution

The fourth proportional to 45,380.25, 68,081.31 and 14,215.50 is: 21,326.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,380.25 : 68,081.31 = 14,215.50 : x
  2. Step 2: Convert to fraction form
    45,380.25/68,081.31 = 14,215.50/x
  3. Step 3: Cross multiply
    45,380.25x = 68,081.31 × 14,215.50
  4. Step 4: Simplify right side
    45,380.25x = 967,809,862.31
  5. Step 5: Solve for x
    x = 967,809,862.31/45,380.25
  6. Step 6: Final answer
    x = 21,326.68

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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.