Home / 209,561.05-314,338.48-51,789.49

Finding the Fourth Proportional to 209,561.05, 314,338.48 and 51,789.49

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Solution

The fourth proportional to 209,561.05, 314,338.48 and 51,789.49 is: 77,683.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,561.05 : 314,338.48 = 51,789.49 : x
  2. Step 2: Convert to fraction form
    209,561.05/314,338.48 = 51,789.49/x
  3. Step 3: Cross multiply
    209,561.05x = 314,338.48 × 51,789.49
  4. Step 4: Simplify right side
    209,561.05x = 16,279,429,566.58
  5. Step 5: Solve for x
    x = 16,279,429,566.58/209,561.05
  6. Step 6: Final answer
    x = 77,683.47

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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.