Home / 74,144.26-111,722.35-61,284.70

Finding the Fourth Proportional to 74,144.26, 111,722.35 and 61,284.70

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Solution

The fourth proportional to 74,144.26, 111,722.35 and 61,284.70 is: 92,345.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,144.26 : 111,722.35 = 61,284.70 : x
  2. Step 2: Convert to fraction form
    74,144.26/111,722.35 = 61,284.70/x
  3. Step 3: Cross multiply
    74,144.26x = 111,722.35 × 61,284.70
  4. Step 4: Simplify right side
    74,144.26x = 6,846,870,117.32
  5. Step 5: Solve for x
    x = 6,846,870,117.32/74,144.26
  6. Step 6: Final answer
    x = 92,345.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.