Home / 209,021.08-313,537.56-51,249.40

Finding the Fourth Proportional to 209,021.08, 313,537.56 and 51,249.40

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Solution

The fourth proportional to 209,021.08, 313,537.56 and 51,249.40 is: 76,875.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,021.08 : 313,537.56 = 51,249.40 : x
  2. Step 2: Convert to fraction form
    209,021.08/313,537.56 = 51,249.40/x
  3. Step 3: Cross multiply
    209,021.08x = 313,537.56 × 51,249.40
  4. Step 4: Simplify right side
    209,021.08x = 16,068,611,827.46
  5. Step 5: Solve for x
    x = 16,068,611,827.46/209,021.08
  6. Step 6: Final answer
    x = 76,875.56

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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.