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Finding the Fourth Proportional to 66,086.51, 91,197.93 and 35,871.89

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Solution

The fourth proportional to 66,086.51, 91,197.93 and 35,871.89 is: 49,502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,086.51 : 91,197.93 = 35,871.89 : x
  2. Step 2: Convert to fraction form
    66,086.51/91,197.93 = 35,871.89/x
  3. Step 3: Cross multiply
    66,086.51x = 91,197.93 × 35,871.89
  4. Step 4: Simplify right side
    66,086.51x = 3,271,441,477.84
  5. Step 5: Solve for x
    x = 3,271,441,477.84/66,086.51
  6. Step 6: Final answer
    x = 49,502.41

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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.