Home / 77,072.93-115,530.57-39,051.77

Finding the Fourth Proportional to 77,072.93, 115,530.57 and 39,051.77

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Solution

The fourth proportional to 77,072.93, 115,530.57 and 39,051.77 is: 58,537.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,072.93 : 115,530.57 = 39,051.77 : x
  2. Step 2: Convert to fraction form
    77,072.93/115,530.57 = 39,051.77/x
  3. Step 3: Cross multiply
    77,072.93x = 115,530.57 × 39,051.77
  4. Step 4: Simplify right side
    77,072.93x = 4,511,672,763.52
  5. Step 5: Solve for x
    x = 4,511,672,763.52/77,072.93
  6. Step 6: Final answer
    x = 58,537.71

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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.