Home / 69,440.66-104,120.89-61,137.35

Finding the Fourth Proportional to 69,440.66, 104,120.89 and 61,137.35

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Solution

The fourth proportional to 69,440.66, 104,120.89 and 61,137.35 is: 91,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,440.66 : 104,120.89 = 61,137.35 : x
  2. Step 2: Convert to fraction form
    69,440.66/104,120.89 = 61,137.35/x
  3. Step 3: Cross multiply
    69,440.66x = 104,120.89 × 61,137.35
  4. Step 4: Simplify right side
    69,440.66x = 6,365,675,294.24
  5. Step 5: Solve for x
    x = 6,365,675,294.24/69,440.66
  6. Step 6: Final answer
    x = 91,670.72

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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.