Home / 74,780.57-111,907.55-46,713.84

Finding the Fourth Proportional to 74,780.57, 111,907.55 and 46,713.84

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Solution

The fourth proportional to 74,780.57, 111,907.55 and 46,713.84 is: 69,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,780.57 : 111,907.55 = 46,713.84 : x
  2. Step 2: Convert to fraction form
    74,780.57/111,907.55 = 46,713.84/x
  3. Step 3: Cross multiply
    74,780.57x = 111,907.55 × 46,713.84
  4. Step 4: Simplify right side
    74,780.57x = 5,227,631,385.49
  5. Step 5: Solve for x
    x = 5,227,631,385.49/74,780.57
  6. Step 6: Final answer
    x = 69,906.28

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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.