Home / 54,316.42-81,485.03-18,776.46

Finding the Fourth Proportional to 54,316.42, 81,485.03 and 18,776.46

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Solution

The fourth proportional to 54,316.42, 81,485.03 and 18,776.46 is: 28,168.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,316.42 : 81,485.03 = 18,776.46 : x
  2. Step 2: Convert to fraction form
    54,316.42/81,485.03 = 18,776.46/x
  3. Step 3: Cross multiply
    54,316.42x = 81,485.03 × 18,776.46
  4. Step 4: Simplify right side
    54,316.42x = 1,530,000,406.39
  5. Step 5: Solve for x
    x = 1,530,000,406.39/54,316.42
  6. Step 6: Final answer
    x = 28,168.29

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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.