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Finding the Fourth Proportional to 64,878.70, 89,532.62 and 36,584.39

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Solution

The fourth proportional to 64,878.70, 89,532.62 and 36,584.39 is: 50,486.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,878.70 : 89,532.62 = 36,584.39 : x
  2. Step 2: Convert to fraction form
    64,878.70/89,532.62 = 36,584.39/x
  3. Step 3: Cross multiply
    64,878.70x = 89,532.62 × 36,584.39
  4. Step 4: Simplify right side
    64,878.70x = 3,275,496,104.88
  5. Step 5: Solve for x
    x = 3,275,496,104.88/64,878.70
  6. Step 6: Final answer
    x = 50,486.47

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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.