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Finding the Fourth Proportional to 86,003.34, 118,680.59 and 47,765.36

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Solution

The fourth proportional to 86,003.34, 118,680.59 and 47,765.36 is: 65,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,003.34 : 118,680.59 = 47,765.36 : x
  2. Step 2: Convert to fraction form
    86,003.34/118,680.59 = 47,765.36/x
  3. Step 3: Cross multiply
    86,003.34x = 118,680.59 × 47,765.36
  4. Step 4: Simplify right side
    86,003.34x = 5,668,821,522.48
  5. Step 5: Solve for x
    x = 5,668,821,522.48/86,003.34
  6. Step 6: Final answer
    x = 65,913.97

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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.