Home / 39,145.34-58,716.40-18,078.44

Finding the Fourth Proportional to 39,145.34, 58,716.40 and 18,078.44

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Solution

The fourth proportional to 39,145.34, 58,716.40 and 18,078.44 is: 27,116.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,145.34 : 58,716.40 = 18,078.44 : x
  2. Step 2: Convert to fraction form
    39,145.34/58,716.40 = 18,078.44/x
  3. Step 3: Cross multiply
    39,145.34x = 58,716.40 × 18,078.44
  4. Step 4: Simplify right side
    39,145.34x = 1,061,500,914.42
  5. Step 5: Solve for x
    x = 1,061,500,914.42/39,145.34
  6. Step 6: Final answer
    x = 27,116.92

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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.