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Finding the Fourth Proportional to 86,129.92, 118,859.34 and 48,404.44

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Solution

The fourth proportional to 86,129.92, 118,859.34 and 48,404.44 is: 66,798.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,129.92 : 118,859.34 = 48,404.44 : x
  2. Step 2: Convert to fraction form
    86,129.92/118,859.34 = 48,404.44/x
  3. Step 3: Cross multiply
    86,129.92x = 118,859.34 × 48,404.44
  4. Step 4: Simplify right side
    86,129.92x = 5,753,319,791.47
  5. Step 5: Solve for x
    x = 5,753,319,791.47/86,129.92
  6. Step 6: Final answer
    x = 66,798.16

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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.