Home / 72,992.10-109,487.07-39,704.34

Finding the Fourth Proportional to 72,992.10, 109,487.07 and 39,704.34

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Solution

The fourth proportional to 72,992.10, 109,487.07 and 39,704.34 is: 59,555.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,992.10 : 109,487.07 = 39,704.34 : x
  2. Step 2: Convert to fraction form
    72,992.10/109,487.07 = 39,704.34/x
  3. Step 3: Cross multiply
    72,992.10x = 109,487.07 × 39,704.34
  4. Step 4: Simplify right side
    72,992.10x = 4,347,111,852.88
  5. Step 5: Solve for x
    x = 4,347,111,852.88/72,992.10
  6. Step 6: Final answer
    x = 59,555.92

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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.