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Finding the Fourth Proportional to 62,618, 86,412.84 and 36,137.36

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Solution

The fourth proportional to 62,618, 86,412.84 and 36,137.36 is: 49,869.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,618 : 86,412.84 = 36,137.36 : x
  2. Step 2: Convert to fraction form
    62,618/86,412.84 = 36,137.36/x
  3. Step 3: Cross multiply
    62,618x = 86,412.84 × 36,137.36
  4. Step 4: Simplify right side
    62,618x = 3,122,731,907.70
  5. Step 5: Solve for x
    x = 3,122,731,907.70/62,618
  6. Step 6: Final answer
    x = 49,869.56

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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.