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Finding the Fourth Proportional to 40,510, 60,796.32 and 28,117

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Solution

The fourth proportional to 40,510, 60,796.32 and 28,117 is: 42,197.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,510 : 60,796.32 = 28,117 : x
  2. Step 2: Convert to fraction form
    40,510/60,796.32 = 28,117/x
  3. Step 3: Cross multiply
    40,510x = 60,796.32 × 28,117
  4. Step 4: Simplify right side
    40,510x = 1,709,410,129.44
  5. Step 5: Solve for x
    x = 1,709,410,129.44/40,510
  6. Step 6: Final answer
    x = 42,197.24

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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.