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Finding the Fourth Proportional to 86,101.38, 118,819.08 and 47,859.93

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Solution

The fourth proportional to 86,101.38, 118,819.08 and 47,859.93 is: 66,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,101.38 : 118,819.08 = 47,859.93 : x
  2. Step 2: Convert to fraction form
    86,101.38/118,819.08 = 47,859.93/x
  3. Step 3: Cross multiply
    86,101.38x = 118,819.08 × 47,859.93
  4. Step 4: Simplify right side
    86,101.38x = 5,686,672,851.46
  5. Step 5: Solve for x
    x = 5,686,672,851.46/86,101.38
  6. Step 6: Final answer
    x = 66,046.25

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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.