Home / 73,123.03-100,879.68-49,257.40

Finding the Fourth Proportional to 73,123.03, 100,879.68 and 49,257.40

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Solution

The fourth proportional to 73,123.03, 100,879.68 and 49,257.40 is: 67,954.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,123.03 : 100,879.68 = 49,257.40 : x
  2. Step 2: Convert to fraction form
    73,123.03/100,879.68 = 49,257.40/x
  3. Step 3: Cross multiply
    73,123.03x = 100,879.68 × 49,257.40
  4. Step 4: Simplify right side
    73,123.03x = 4,969,070,749.63
  5. Step 5: Solve for x
    x = 4,969,070,749.63/73,123.03
  6. Step 6: Final answer
    x = 67,954.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.