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Finding the Fourth Proportional to 66,630.65, 91,950.08 and 36,415.97

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Solution

The fourth proportional to 66,630.65, 91,950.08 and 36,415.97 is: 50,253.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,630.65 : 91,950.08 = 36,415.97 : x
  2. Step 2: Convert to fraction form
    66,630.65/91,950.08 = 36,415.97/x
  3. Step 3: Cross multiply
    66,630.65x = 91,950.08 × 36,415.97
  4. Step 4: Simplify right side
    66,630.65x = 3,348,450,986.07
  5. Step 5: Solve for x
    x = 3,348,450,986.07/66,630.65
  6. Step 6: Final answer
    x = 50,253.91

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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.