Home / 77,766.90-107,317.11-43,775.31

Finding the Fourth Proportional to 77,766.90, 107,317.11 and 43,775.31

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Solution

The fourth proportional to 77,766.90, 107,317.11 and 43,775.31 is: 60,409.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,766.90 : 107,317.11 = 43,775.31 : x
  2. Step 2: Convert to fraction form
    77,766.90/107,317.11 = 43,775.31/x
  3. Step 3: Cross multiply
    77,766.90x = 107,317.11 × 43,775.31
  4. Step 4: Simplify right side
    77,766.90x = 4,697,839,758.55
  5. Step 5: Solve for x
    x = 4,697,839,758.55/77,766.90
  6. Step 6: Final answer
    x = 60,409.25

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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.