Home / 54,353.13-81,530.70-16,912.90

Finding the Fourth Proportional to 54,353.13, 81,530.70 and 16,912.90

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Solution

The fourth proportional to 54,353.13, 81,530.70 and 16,912.90 is: 25,369.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,353.13 : 81,530.70 = 16,912.90 : x
  2. Step 2: Convert to fraction form
    54,353.13/81,530.70 = 16,912.90/x
  3. Step 3: Cross multiply
    54,353.13x = 81,530.70 × 16,912.90
  4. Step 4: Simplify right side
    54,353.13x = 1,378,920,576.03
  5. Step 5: Solve for x
    x = 1,378,920,576.03/54,353.13
  6. Step 6: Final answer
    x = 25,369.66

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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.