Home / 54,313.70-81,450.57-18,765.91

Finding the Fourth Proportional to 54,313.70, 81,450.57 and 18,765.91

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Solution

The fourth proportional to 54,313.70, 81,450.57 and 18,765.91 is: 28,141.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,313.70 : 81,450.57 = 18,765.91 : x
  2. Step 2: Convert to fraction form
    54,313.70/81,450.57 = 18,765.91/x
  3. Step 3: Cross multiply
    54,313.70x = 81,450.57 × 18,765.91
  4. Step 4: Simplify right side
    54,313.70x = 1,528,494,066.07
  5. Step 5: Solve for x
    x = 1,528,494,066.07/54,313.70
  6. Step 6: Final answer
    x = 28,141.96

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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.