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Finding the Fourth Proportional to 85,243.93, 127,871.01 and 26,080.11

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Solution

The fourth proportional to 85,243.93, 127,871.01 and 26,080.11 is: 39,121.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,243.93 : 127,871.01 = 26,080.11 : x
  2. Step 2: Convert to fraction form
    85,243.93/127,871.01 = 26,080.11/x
  3. Step 3: Cross multiply
    85,243.93x = 127,871.01 × 26,080.11
  4. Step 4: Simplify right side
    85,243.93x = 3,334,890,071.81
  5. Step 5: Solve for x
    x = 3,334,890,071.81/85,243.93
  6. Step 6: Final answer
    x = 39,121.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.