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Finding the Fourth Proportional to 70,900.03, 106,249.80 and 39,324

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Solution

The fourth proportional to 70,900.03, 106,249.80 and 39,324 is: 58,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,900.03 : 106,249.80 = 39,324 : x
  2. Step 2: Convert to fraction form
    70,900.03/106,249.80 = 39,324/x
  3. Step 3: Cross multiply
    70,900.03x = 106,249.80 × 39,324
  4. Step 4: Simplify right side
    70,900.03x = 4,178,167,135.20
  5. Step 5: Solve for x
    x = 4,178,167,135.20/70,900.03
  6. Step 6: Final answer
    x = 58,930.40

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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.