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Finding the Fourth Proportional to 86,032.43, 118,743.73 and 47,805.11

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Solution

The fourth proportional to 86,032.43, 118,743.73 and 47,805.11 is: 65,981.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,032.43 : 118,743.73 = 47,805.11 : x
  2. Step 2: Convert to fraction form
    86,032.43/118,743.73 = 47,805.11/x
  3. Step 3: Cross multiply
    86,032.43x = 118,743.73 × 47,805.11
  4. Step 4: Simplify right side
    86,032.43x = 5,676,556,361.23
  5. Step 5: Solve for x
    x = 5,676,556,361.23/86,032.43
  6. Step 6: Final answer
    x = 65,981.59

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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.