Home / 212,040.19-318,059.47-54,268.39

Finding the Fourth Proportional to 212,040.19, 318,059.47 and 54,268.39

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Solution

The fourth proportional to 212,040.19, 318,059.47 and 54,268.39 is: 81,402.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,040.19 : 318,059.47 = 54,268.39 : x
  2. Step 2: Convert to fraction form
    212,040.19/318,059.47 = 54,268.39/x
  3. Step 3: Cross multiply
    212,040.19x = 318,059.47 × 54,268.39
  4. Step 4: Simplify right side
    212,040.19x = 17,260,575,361.15
  5. Step 5: Solve for x
    x = 17,260,575,361.15/212,040.19
  6. Step 6: Final answer
    x = 81,402.38

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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.