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Finding the Fourth Proportional to 65,337, 90,165.70 and 35,529.64

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Solution

The fourth proportional to 65,337, 90,165.70 and 35,529.64 is: 49,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,337 : 90,165.70 = 35,529.64 : x
  2. Step 2: Convert to fraction form
    65,337/90,165.70 = 35,529.64/x
  3. Step 3: Cross multiply
    65,337x = 90,165.70 × 35,529.64
  4. Step 4: Simplify right side
    65,337x = 3,203,554,861.35
  5. Step 5: Solve for x
    x = 3,203,554,861.35/65,337
  6. Step 6: Final answer
    x = 49,031.25

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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.