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Finding the Fourth Proportional to 69,990.87, 105,004.82 and 36,702.00

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Solution

The fourth proportional to 69,990.87, 105,004.82 and 36,702.00 is: 55,062.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,990.87 : 105,004.82 = 36,702.00 : x
  2. Step 2: Convert to fraction form
    69,990.87/105,004.82 = 36,702.00/x
  3. Step 3: Cross multiply
    69,990.87x = 105,004.82 × 36,702.00
  4. Step 4: Simplify right side
    69,990.87x = 3,853,886,692.90
  5. Step 5: Solve for x
    x = 3,853,886,692.90/69,990.87
  6. Step 6: Final answer
    x = 55,062.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.