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Finding the Fourth Proportional to 50,798, 70,099.08 and 28,136.90

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Solution

The fourth proportional to 50,798, 70,099.08 and 28,136.90 is: 38,827.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,798 : 70,099.08 = 28,136.90 : x
  2. Step 2: Convert to fraction form
    50,798/70,099.08 = 28,136.90/x
  3. Step 3: Cross multiply
    50,798x = 70,099.08 × 28,136.90
  4. Step 4: Simplify right side
    50,798x = 1,972,370,804.05
  5. Step 5: Solve for x
    x = 1,972,370,804.05/50,798
  6. Step 6: Final answer
    x = 38,827.73

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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.