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Finding the Fourth Proportional to 94,150.50, 129,939.21 and 54,406.50

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Solution

The fourth proportional to 94,150.50, 129,939.21 and 54,406.50 is: 75,087.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,150.50 : 129,939.21 = 54,406.50 : x
  2. Step 2: Convert to fraction form
    94,150.50/129,939.21 = 54,406.50/x
  3. Step 3: Cross multiply
    94,150.50x = 129,939.21 × 54,406.50
  4. Step 4: Simplify right side
    94,150.50x = 7,069,537,628.87
  5. Step 5: Solve for x
    x = 7,069,537,628.87/94,150.50
  6. Step 6: Final answer
    x = 75,087.63

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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.