Home / 54,141.21-74,715.34-29,940.91

Finding the Fourth Proportional to 54,141.21, 74,715.34 and 29,940.91

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Solution

The fourth proportional to 54,141.21, 74,715.34 and 29,940.91 is: 41,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,141.21 : 74,715.34 = 29,940.91 : x
  2. Step 2: Convert to fraction form
    54,141.21/74,715.34 = 29,940.91/x
  3. Step 3: Cross multiply
    54,141.21x = 74,715.34 × 29,940.91
  4. Step 4: Simplify right side
    54,141.21x = 2,237,045,120.85
  5. Step 5: Solve for x
    x = 2,237,045,120.85/54,141.21
  6. Step 6: Final answer
    x = 41,318.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.