Home / 78,279.06-107,999.52-44,284.26

Finding the Fourth Proportional to 78,279.06, 107,999.52 and 44,284.26

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Solution

The fourth proportional to 78,279.06, 107,999.52 and 44,284.26 is: 61,097.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,279.06 : 107,999.52 = 44,284.26 : x
  2. Step 2: Convert to fraction form
    78,279.06/107,999.52 = 44,284.26/x
  3. Step 3: Cross multiply
    78,279.06x = 107,999.52 × 44,284.26
  4. Step 4: Simplify right side
    78,279.06x = 4,782,678,823.56
  5. Step 5: Solve for x
    x = 4,782,678,823.56/78,279.06
  6. Step 6: Final answer
    x = 61,097.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.