Home / 74,138.98-111,077.24-61,585.60

Finding the Fourth Proportional to 74,138.98, 111,077.24 and 61,585.60

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Solution

The fourth proportional to 74,138.98, 111,077.24 and 61,585.60 is: 92,269.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,138.98 : 111,077.24 = 61,585.60 : x
  2. Step 2: Convert to fraction form
    74,138.98/111,077.24 = 61,585.60/x
  3. Step 3: Cross multiply
    74,138.98x = 111,077.24 × 61,585.60
  4. Step 4: Simplify right side
    74,138.98x = 6,840,758,471.74
  5. Step 5: Solve for x
    x = 6,840,758,471.74/74,138.98
  6. Step 6: Final answer
    x = 92,269.39

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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.