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Finding the Fourth Proportional to 66,101.66, 91,220.29 and 35,886.94

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Solution

The fourth proportional to 66,101.66, 91,220.29 and 35,886.94 is: 49,523.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,101.66 : 91,220.29 = 35,886.94 : x
  2. Step 2: Convert to fraction form
    66,101.66/91,220.29 = 35,886.94/x
  3. Step 3: Cross multiply
    66,101.66x = 91,220.29 × 35,886.94
  4. Step 4: Simplify right side
    66,101.66x = 3,273,617,074.01
  5. Step 5: Solve for x
    x = 3,273,617,074.01/66,101.66
  6. Step 6: Final answer
    x = 49,523.98

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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.