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Finding the Fourth Proportional to 85,329.49, 117,752.85 and 47,087.57

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Solution

The fourth proportional to 85,329.49, 117,752.85 and 47,087.57 is: 64,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,329.49 : 117,752.85 = 47,087.57 : x
  2. Step 2: Convert to fraction form
    85,329.49/117,752.85 = 47,087.57/x
  3. Step 3: Cross multiply
    85,329.49x = 117,752.85 × 47,087.57
  4. Step 4: Simplify right side
    85,329.49x = 5,544,695,567.07
  5. Step 5: Solve for x
    x = 5,544,695,567.07/85,329.49
  6. Step 6: Final answer
    x = 64,979.83

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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.