Home / 77,305.22-115,971.67-39,855.24

Finding the Fourth Proportional to 77,305.22, 115,971.67 and 39,855.24

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Solution

The fourth proportional to 77,305.22, 115,971.67 and 39,855.24 is: 59,790.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,305.22 : 115,971.67 = 39,855.24 : x
  2. Step 2: Convert to fraction form
    77,305.22/115,971.67 = 39,855.24/x
  3. Step 3: Cross multiply
    77,305.22x = 115,971.67 × 39,855.24
  4. Step 4: Simplify right side
    77,305.22x = 4,622,078,902.96
  5. Step 5: Solve for x
    x = 4,622,078,902.96/77,305.22
  6. Step 6: Final answer
    x = 59,790.00

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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.