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Finding the Fourth Proportional to 86,659.30, 119,590.63 and 50,849.91

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Solution

The fourth proportional to 86,659.30, 119,590.63 and 50,849.91 is: 70,173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,659.30 : 119,590.63 = 50,849.91 : x
  2. Step 2: Convert to fraction form
    86,659.30/119,590.63 = 50,849.91/x
  3. Step 3: Cross multiply
    86,659.30x = 119,590.63 × 50,849.91
  4. Step 4: Simplify right side
    86,659.30x = 6,081,172,645.22
  5. Step 5: Solve for x
    x = 6,081,172,645.22/86,659.30
  6. Step 6: Final answer
    x = 70,173.34

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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.