Home / 74,172.98-111,342.50-49,261.68

Finding the Fourth Proportional to 74,172.98, 111,342.50 and 49,261.68

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Solution

The fourth proportional to 74,172.98, 111,342.50 and 49,261.68 is: 73,947.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,172.98 : 111,342.50 = 49,261.68 : x
  2. Step 2: Convert to fraction form
    74,172.98/111,342.50 = 49,261.68/x
  3. Step 3: Cross multiply
    74,172.98x = 111,342.50 × 49,261.68
  4. Step 4: Simplify right side
    74,172.98x = 5,484,918,605.40
  5. Step 5: Solve for x
    x = 5,484,918,605.40/74,172.98
  6. Step 6: Final answer
    x = 73,947.66

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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.