Home / 212,007.09-318,009.01-54,235.29

Finding the Fourth Proportional to 212,007.09, 318,009.01 and 54,235.29

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Solution

The fourth proportional to 212,007.09, 318,009.01 and 54,235.29 is: 81,352.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,007.09 : 318,009.01 = 54,235.29 : x
  2. Step 2: Convert to fraction form
    212,007.09/318,009.01 = 54,235.29/x
  3. Step 3: Cross multiply
    212,007.09x = 318,009.01 × 54,235.29
  4. Step 4: Simplify right side
    212,007.09x = 17,247,310,879.96
  5. Step 5: Solve for x
    x = 17,247,310,879.96/212,007.09
  6. Step 6: Final answer
    x = 81,352.52

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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.