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Finding the Fourth Proportional to 86,204.98, 118,948.38 and 47,959.54

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Solution

The fourth proportional to 86,204.98, 118,948.38 and 47,959.54 is: 66,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,204.98 : 118,948.38 = 47,959.54 : x
  2. Step 2: Convert to fraction form
    86,204.98/118,948.38 = 47,959.54/x
  3. Step 3: Cross multiply
    86,204.98x = 118,948.38 × 47,959.54
  4. Step 4: Simplify right side
    86,204.98x = 5,704,709,588.55
  5. Step 5: Solve for x
    x = 5,704,709,588.55/86,204.98
  6. Step 6: Final answer
    x = 66,176.10

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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.