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Finding the Fourth Proportional to 65,302.56, 90,117.12 and 35,494.56

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Solution

The fourth proportional to 65,302.56, 90,117.12 and 35,494.56 is: 48,982.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,302.56 : 90,117.12 = 35,494.56 : x
  2. Step 2: Convert to fraction form
    65,302.56/90,117.12 = 35,494.56/x
  3. Step 3: Cross multiply
    65,302.56x = 90,117.12 × 35,494.56
  4. Step 4: Simplify right side
    65,302.56x = 3,198,667,522.87
  5. Step 5: Solve for x
    x = 3,198,667,522.87/65,302.56
  6. Step 6: Final answer
    x = 48,982.27

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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.