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Finding the Fourth Proportional to 72,554.00, 108,873.01 and 30,430.32

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Solution

The fourth proportional to 72,554.00, 108,873.01 and 30,430.32 is: 45,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,554.00 : 108,873.01 = 30,430.32 : x
  2. Step 2: Convert to fraction form
    72,554.00/108,873.01 = 30,430.32/x
  3. Step 3: Cross multiply
    72,554.00x = 108,873.01 × 30,430.32
  4. Step 4: Simplify right side
    72,554.00x = 3,313,040,163.43
  5. Step 5: Solve for x
    x = 3,313,040,163.43/72,554.00
  6. Step 6: Final answer
    x = 45,663.10

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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.