Home / 74,219.94-111,349.35-36,778.50

Finding the Fourth Proportional to 74,219.94, 111,349.35 and 36,778.50

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Solution

The fourth proportional to 74,219.94, 111,349.35 and 36,778.50 is: 55,177.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,219.94 : 111,349.35 = 36,778.50 : x
  2. Step 2: Convert to fraction form
    74,219.94/111,349.35 = 36,778.50/x
  3. Step 3: Cross multiply
    74,219.94x = 111,349.35 × 36,778.50
  4. Step 4: Simplify right side
    74,219.94x = 4,095,262,068.98
  5. Step 5: Solve for x
    x = 4,095,262,068.98/74,219.94
  6. Step 6: Final answer
    x = 55,177.38

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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.