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Finding the Fourth Proportional to 73,101.40, 100,879.92 and 39,567.40

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Solution

The fourth proportional to 73,101.40, 100,879.92 and 39,567.40 is: 54,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,101.40 : 100,879.92 = 39,567.40 : x
  2. Step 2: Convert to fraction form
    73,101.40/100,879.92 = 39,567.40/x
  3. Step 3: Cross multiply
    73,101.40x = 100,879.92 × 39,567.40
  4. Step 4: Simplify right side
    73,101.40x = 3,991,556,146.61
  5. Step 5: Solve for x
    x = 3,991,556,146.61/73,101.40
  6. Step 6: Final answer
    x = 54,603.01

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