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Finding the Fourth Proportional to 65,237.44, 90,027.84 and 38,380.96

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Solution

The fourth proportional to 65,237.44, 90,027.84 and 38,380.96 is: 52,965.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,237.44 : 90,027.84 = 38,380.96 : x
  2. Step 2: Convert to fraction form
    65,237.44/90,027.84 = 38,380.96/x
  3. Step 3: Cross multiply
    65,237.44x = 90,027.84 × 38,380.96
  4. Step 4: Simplify right side
    65,237.44x = 3,455,354,925.93
  5. Step 5: Solve for x
    x = 3,455,354,925.93/65,237.44
  6. Step 6: Final answer
    x = 52,965.83

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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.