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Finding the Fourth Proportional to 85,284.94, 127,927.70 and 26,120.34

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Solution

The fourth proportional to 85,284.94, 127,927.70 and 26,120.34 is: 39,180.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,284.94 : 127,927.70 = 26,120.34 : x
  2. Step 2: Convert to fraction form
    85,284.94/127,927.70 = 26,120.34/x
  3. Step 3: Cross multiply
    85,284.94x = 127,927.70 × 26,120.34
  4. Step 4: Simplify right side
    85,284.94x = 3,341,515,019.42
  5. Step 5: Solve for x
    x = 3,341,515,019.42/85,284.94
  6. Step 6: Final answer
    x = 39,180.60

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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.