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Finding the Fourth Proportional to 86,166, 118,909.08 and 48,440.52

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Solution

The fourth proportional to 86,166, 118,909.08 and 48,440.52 is: 66,847.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,166 : 118,909.08 = 48,440.52 : x
  2. Step 2: Convert to fraction form
    86,166/118,909.08 = 48,440.52/x
  3. Step 3: Cross multiply
    86,166x = 118,909.08 × 48,440.52
  4. Step 4: Simplify right side
    86,166x = 5,760,017,667.92
  5. Step 5: Solve for x
    x = 5,760,017,667.92/86,166
  6. Step 6: Final answer
    x = 66,847.92

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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.