Home / 56,739.58-78,260.79-49,172.62

Finding the Fourth Proportional to 56,739.58, 78,260.79 and 49,172.62

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Solution

The fourth proportional to 56,739.58, 78,260.79 and 49,172.62 is: 67,823.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,739.58 : 78,260.79 = 49,172.62 : x
  2. Step 2: Convert to fraction form
    56,739.58/78,260.79 = 49,172.62/x
  3. Step 3: Cross multiply
    56,739.58x = 78,260.79 × 49,172.62
  4. Step 4: Simplify right side
    56,739.58x = 3,848,288,087.57
  5. Step 5: Solve for x
    x = 3,848,288,087.57/56,739.58
  6. Step 6: Final answer
    x = 67,823.70

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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.