Home / 54,453.63-81,685.50-21,176.20

Finding the Fourth Proportional to 54,453.63, 81,685.50 and 21,176.20

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Solution

The fourth proportional to 54,453.63, 81,685.50 and 21,176.20 is: 31,766.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,453.63 : 81,685.50 = 21,176.20 : x
  2. Step 2: Convert to fraction form
    54,453.63/81,685.50 = 21,176.20/x
  3. Step 3: Cross multiply
    54,453.63x = 81,685.50 × 21,176.20
  4. Step 4: Simplify right side
    54,453.63x = 1,729,788,507.80
  5. Step 5: Solve for x
    x = 1,729,788,507.80/54,453.63
  6. Step 6: Final answer
    x = 31,766.26

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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.