Home / 212,048.76-318,072.94-54,276.96

Finding the Fourth Proportional to 212,048.76, 318,072.94 and 54,276.96

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Solution

The fourth proportional to 212,048.76, 318,072.94 and 54,276.96 is: 81,415.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,048.76 : 318,072.94 = 54,276.96 : x
  2. Step 2: Convert to fraction form
    212,048.76/318,072.94 = 54,276.96/x
  3. Step 3: Cross multiply
    212,048.76x = 318,072.94 × 54,276.96
  4. Step 4: Simplify right side
    212,048.76x = 17,264,032,241.46
  5. Step 5: Solve for x
    x = 17,264,032,241.46/212,048.76
  6. Step 6: Final answer
    x = 81,415.39

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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.