Home / 212,006.84-318,008.63-54,235.04

Finding the Fourth Proportional to 212,006.84, 318,008.63 and 54,235.04

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Solution

The fourth proportional to 212,006.84, 318,008.63 and 54,235.04 is: 81,352.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,006.84 : 318,008.63 = 54,235.04 : x
  2. Step 2: Convert to fraction form
    212,006.84/318,008.63 = 54,235.04/x
  3. Step 3: Cross multiply
    212,006.84x = 318,008.63 × 54,235.04
  4. Step 4: Simplify right side
    212,006.84x = 17,247,208,907.18
  5. Step 5: Solve for x
    x = 17,247,208,907.18/212,006.84
  6. Step 6: Final answer
    x = 81,352.14

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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.