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Finding the Fourth Proportional to 85,329.95, 117,792.99 and 55,129.91

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Solution

The fourth proportional to 85,329.95, 117,792.99 and 55,129.91 is: 76,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,329.95 : 117,792.99 = 55,129.91 : x
  2. Step 2: Convert to fraction form
    85,329.95/117,792.99 = 55,129.91/x
  3. Step 3: Cross multiply
    85,329.95x = 117,792.99 × 55,129.91
  4. Step 4: Simplify right side
    85,329.95x = 6,493,916,348.37
  5. Step 5: Solve for x
    x = 6,493,916,348.37/85,329.95
  6. Step 6: Final answer
    x = 76,103.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.