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Finding the Fourth Proportional to 85,241.73, 117,605.01 and 55,047.47

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Solution

The fourth proportional to 85,241.73, 117,605.01 and 55,047.47 is: 75,947.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,241.73 : 117,605.01 = 55,047.47 : x
  2. Step 2: Convert to fraction form
    85,241.73/117,605.01 = 55,047.47/x
  3. Step 3: Cross multiply
    85,241.73x = 117,605.01 × 55,047.47
  4. Step 4: Simplify right side
    85,241.73x = 6,473,857,671.80
  5. Step 5: Solve for x
    x = 6,473,857,671.80/85,241.73
  6. Step 6: Final answer
    x = 75,947.05

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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.