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Finding the Fourth Proportional to 86,171.44, 118,880.04 and 52,618

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Solution

The fourth proportional to 86,171.44, 118,880.04 and 52,618 is: 72,590.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,171.44 : 118,880.04 = 52,618 : x
  2. Step 2: Convert to fraction form
    86,171.44/118,880.04 = 52,618/x
  3. Step 3: Cross multiply
    86,171.44x = 118,880.04 × 52,618
  4. Step 4: Simplify right side
    86,171.44x = 6,255,229,944.72
  5. Step 5: Solve for x
    x = 6,255,229,944.72/86,171.44
  6. Step 6: Final answer
    x = 72,590.52

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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.