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Finding the Fourth Proportional to 48,729.15, 73,101.08 and 20,649.32

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Solution

The fourth proportional to 48,729.15, 73,101.08 and 20,649.32 is: 30,977.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,729.15 : 73,101.08 = 20,649.32 : x
  2. Step 2: Convert to fraction form
    48,729.15/73,101.08 = 20,649.32/x
  3. Step 3: Cross multiply
    48,729.15x = 73,101.08 × 20,649.32
  4. Step 4: Simplify right side
    48,729.15x = 1,509,487,553.51
  5. Step 5: Solve for x
    x = 1,509,487,553.51/48,729.15
  6. Step 6: Final answer
    x = 30,977.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.