Home / 54,213.90-74,813.40-30,339.96

Finding the Fourth Proportional to 54,213.90, 74,813.40 and 30,339.96

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Solution

The fourth proportional to 54,213.90, 74,813.40 and 30,339.96 is: 41,868.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,213.90 : 74,813.40 = 30,339.96 : x
  2. Step 2: Convert to fraction form
    54,213.90/74,813.40 = 30,339.96/x
  3. Step 3: Cross multiply
    54,213.90x = 74,813.40 × 30,339.96
  4. Step 4: Simplify right side
    54,213.90x = 2,269,835,563.46
  5. Step 5: Solve for x
    x = 2,269,835,563.46/54,213.90
  6. Step 6: Final answer
    x = 41,868.15

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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.