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Finding the Fourth Proportional to 85,360.69, 117,786.88 and 47,636.53

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Solution

The fourth proportional to 85,360.69, 117,786.88 and 47,636.53 is: 65,732.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,360.69 : 117,786.88 = 47,636.53 : x
  2. Step 2: Convert to fraction form
    85,360.69/117,786.88 = 47,636.53/x
  3. Step 3: Cross multiply
    85,360.69x = 117,786.88 × 47,636.53
  4. Step 4: Simplify right side
    85,360.69x = 5,610,958,242.73
  5. Step 5: Solve for x
    x = 5,610,958,242.73/85,360.69
  6. Step 6: Final answer
    x = 65,732.34

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1.5x scale

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.