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Finding the Fourth Proportional to 72,603.44, 108,907.98 and 20,017.04

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Solution

The fourth proportional to 72,603.44, 108,907.98 and 20,017.04 is: 30,026.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,603.44 : 108,907.98 = 20,017.04 : x
  2. Step 2: Convert to fraction form
    72,603.44/108,907.98 = 20,017.04/x
  3. Step 3: Cross multiply
    72,603.44x = 108,907.98 × 20,017.04
  4. Step 4: Simplify right side
    72,603.44x = 2,180,015,391.98
  5. Step 5: Solve for x
    x = 2,180,015,391.98/72,603.44
  6. Step 6: Final answer
    x = 30,026.34

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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.