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Finding the Fourth Proportional to 65,429.70, 90,285.80 and 36,743.54

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Solution

The fourth proportional to 65,429.70, 90,285.80 and 36,743.54 is: 50,702.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,429.70 : 90,285.80 = 36,743.54 : x
  2. Step 2: Convert to fraction form
    65,429.70/90,285.80 = 36,743.54/x
  3. Step 3: Cross multiply
    65,429.70x = 90,285.80 × 36,743.54
  4. Step 4: Simplify right side
    65,429.70x = 3,317,419,903.73
  5. Step 5: Solve for x
    x = 3,317,419,903.73/65,429.70
  6. Step 6: Final answer
    x = 50,702.05

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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.