Home / 86,590.89-119,496.06-50,781.60

Finding the Fourth Proportional to 86,590.89, 119,496.06 and 50,781.60

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Solution

The fourth proportional to 86,590.89, 119,496.06 and 50,781.60 is: 70,078.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,590.89 : 119,496.06 = 50,781.60 : x
  2. Step 2: Convert to fraction form
    86,590.89/119,496.06 = 50,781.60/x
  3. Step 3: Cross multiply
    86,590.89x = 119,496.06 × 50,781.60
  4. Step 4: Simplify right side
    86,590.89x = 6,068,201,120.50
  5. Step 5: Solve for x
    x = 6,068,201,120.50/86,590.89
  6. Step 6: Final answer
    x = 70,078.98

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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.