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Finding the Fourth Proportional to 94,171.50, 129,968.19 and 54,427.50

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Solution

The fourth proportional to 94,171.50, 129,968.19 and 54,427.50 is: 75,116.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,171.50 : 129,968.19 = 54,427.50 : x
  2. Step 2: Convert to fraction form
    94,171.50/129,968.19 = 54,427.50/x
  3. Step 3: Cross multiply
    94,171.50x = 129,968.19 × 54,427.50
  4. Step 4: Simplify right side
    94,171.50x = 7,073,843,661.23
  5. Step 5: Solve for x
    x = 7,073,843,661.23/94,171.50
  6. Step 6: Final answer
    x = 75,116.61

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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.