Home / 52,292.57-78,414.35-18,989.42

Finding the Fourth Proportional to 52,292.57, 78,414.35 and 18,989.42

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Solution

The fourth proportional to 52,292.57, 78,414.35 and 18,989.42 is: 28,475.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,292.57 : 78,414.35 = 18,989.42 : x
  2. Step 2: Convert to fraction form
    52,292.57/78,414.35 = 18,989.42/x
  3. Step 3: Cross multiply
    52,292.57x = 78,414.35 × 18,989.42
  4. Step 4: Simplify right side
    52,292.57x = 1,489,042,539.16
  5. Step 5: Solve for x
    x = 1,489,042,539.16/52,292.57
  6. Step 6: Final answer
    x = 28,475.22

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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.