Home / 86,077.68-118,796.39-50,279.32

Finding the Fourth Proportional to 86,077.68, 118,796.39 and 50,279.32

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Solution

The fourth proportional to 86,077.68, 118,796.39 and 50,279.32 is: 69,390.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,077.68 : 118,796.39 = 50,279.32 : x
  2. Step 2: Convert to fraction form
    86,077.68/118,796.39 = 50,279.32/x
  3. Step 3: Cross multiply
    86,077.68x = 118,796.39 × 50,279.32
  4. Step 4: Simplify right side
    86,077.68x = 5,973,001,707.65
  5. Step 5: Solve for x
    x = 5,973,001,707.65/86,077.68
  6. Step 6: Final answer
    x = 69,390.83

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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.