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Finding the Fourth Proportional to 72,577, 108,865.58 and 28,801

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Solution

The fourth proportional to 72,577, 108,865.58 and 28,801 is: 43,201.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,577 : 108,865.58 = 28,801 : x
  2. Step 2: Convert to fraction form
    72,577/108,865.58 = 28,801/x
  3. Step 3: Cross multiply
    72,577x = 108,865.58 × 28,801
  4. Step 4: Simplify right side
    72,577x = 3,135,437,569.58
  5. Step 5: Solve for x
    x = 3,135,437,569.58/72,577
  6. Step 6: Final answer
    x = 43,201.53

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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.