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Finding the Fourth Proportional to 64,138.65, 88,516.79 and 37,279.44

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Solution

The fourth proportional to 64,138.65, 88,516.79 and 37,279.44 is: 51,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,138.65 : 88,516.79 = 37,279.44 : x
  2. Step 2: Convert to fraction form
    64,138.65/88,516.79 = 37,279.44/x
  3. Step 3: Cross multiply
    64,138.65x = 88,516.79 × 37,279.44
  4. Step 4: Simplify right side
    64,138.65x = 3,299,856,361.80
  5. Step 5: Solve for x
    x = 3,299,856,361.80/64,138.65
  6. Step 6: Final answer
    x = 51,448.80

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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.