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Finding the Fourth Proportional to 66,453.25, 91,705.49 and 36,645.25

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Solution

The fourth proportional to 66,453.25, 91,705.49 and 36,645.25 is: 50,570.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,453.25 : 91,705.49 = 36,645.25 : x
  2. Step 2: Convert to fraction form
    66,453.25/91,705.49 = 36,645.25/x
  3. Step 3: Cross multiply
    66,453.25x = 91,705.49 × 36,645.25
  4. Step 4: Simplify right side
    66,453.25x = 3,360,570,424.20
  5. Step 5: Solve for x
    x = 3,360,570,424.20/66,453.25
  6. Step 6: Final answer
    x = 50,570.45

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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.