Home / 54,638.55-81,909.23-21,351.06

Finding the Fourth Proportional to 54,638.55, 81,909.23 and 21,351.06

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Solution

The fourth proportional to 54,638.55, 81,909.23 and 21,351.06 is: 32,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,638.55 : 81,909.23 = 21,351.06 : x
  2. Step 2: Convert to fraction form
    54,638.55/81,909.23 = 21,351.06/x
  3. Step 3: Cross multiply
    54,638.55x = 81,909.23 × 21,351.06
  4. Step 4: Simplify right side
    54,638.55x = 1,748,848,777.53
  5. Step 5: Solve for x
    x = 1,748,848,777.53/54,638.55
  6. Step 6: Final answer
    x = 32,007.60

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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.