Home / 77,696.15-107,181.87-49,051.31

Finding the Fourth Proportional to 77,696.15, 107,181.87 and 49,051.31

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Solution

The fourth proportional to 77,696.15, 107,181.87 and 49,051.31 is: 67,666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,696.15 : 107,181.87 = 49,051.31 : x
  2. Step 2: Convert to fraction form
    77,696.15/107,181.87 = 49,051.31/x
  3. Step 3: Cross multiply
    77,696.15x = 107,181.87 × 49,051.31
  4. Step 4: Simplify right side
    77,696.15x = 5,257,411,131.75
  5. Step 5: Solve for x
    x = 5,257,411,131.75/77,696.15
  6. Step 6: Final answer
    x = 67,666.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.