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Finding the Fourth Proportional to 91,081.79, 125,692.99 and 50,245.00

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Solution

The fourth proportional to 91,081.79, 125,692.99 and 50,245.00 is: 69,338.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,081.79 : 125,692.99 = 50,245.00 : x
  2. Step 2: Convert to fraction form
    91,081.79/125,692.99 = 50,245.00/x
  3. Step 3: Cross multiply
    91,081.79x = 125,692.99 × 50,245.00
  4. Step 4: Simplify right side
    91,081.79x = 6,315,443,654.09
  5. Step 5: Solve for x
    x = 6,315,443,654.09/91,081.79
  6. Step 6: Final answer
    x = 69,338.16

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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.