Home / 54,406.67-81,560.75-19,338.12

Finding the Fourth Proportional to 54,406.67, 81,560.75 and 19,338.12

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Solution

The fourth proportional to 54,406.67, 81,560.75 and 19,338.12 is: 28,989.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,406.67 : 81,560.75 = 19,338.12 : x
  2. Step 2: Convert to fraction form
    54,406.67/81,560.75 = 19,338.12/x
  3. Step 3: Cross multiply
    54,406.67x = 81,560.75 × 19,338.12
  4. Step 4: Simplify right side
    54,406.67x = 1,577,231,474.10
  5. Step 5: Solve for x
    x = 1,577,231,474.10/54,406.67
  6. Step 6: Final answer
    x = 28,989.67

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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.