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Finding the Fourth Proportional to 65,469.70, 90,348.30 and 37,175.38

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Solution

The fourth proportional to 65,469.70, 90,348.30 and 37,175.38 is: 51,302.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,469.70 : 90,348.30 = 37,175.38 : x
  2. Step 2: Convert to fraction form
    65,469.70/90,348.30 = 37,175.38/x
  3. Step 3: Cross multiply
    65,469.70x = 90,348.30 × 37,175.38
  4. Step 4: Simplify right side
    65,469.70x = 3,358,732,384.85
  5. Step 5: Solve for x
    x = 3,358,732,384.85/65,469.70
  6. Step 6: Final answer
    x = 51,302.09

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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.