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Finding the Fourth Proportional to 66,133.50, 91,264.44 and 39,277.14

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Solution

The fourth proportional to 66,133.50, 91,264.44 and 39,277.14 is: 54,202.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,133.50 : 91,264.44 = 39,277.14 : x
  2. Step 2: Convert to fraction form
    66,133.50/91,264.44 = 39,277.14/x
  3. Step 3: Cross multiply
    66,133.50x = 91,264.44 × 39,277.14
  4. Step 4: Simplify right side
    66,133.50x = 3,584,606,186.90
  5. Step 5: Solve for x
    x = 3,584,606,186.90/66,133.50
  6. Step 6: Final answer
    x = 54,202.58

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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.