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Finding the Fourth Proportional to 40,485.15, 60,727.73 and 10,905.29

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Solution

The fourth proportional to 40,485.15, 60,727.73 and 10,905.29 is: 16,357.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,485.15 : 60,727.73 = 10,905.29 : x
  2. Step 2: Convert to fraction form
    40,485.15/60,727.73 = 10,905.29/x
  3. Step 3: Cross multiply
    40,485.15x = 60,727.73 × 10,905.29
  4. Step 4: Simplify right side
    40,485.15x = 662,253,148.53
  5. Step 5: Solve for x
    x = 662,253,148.53/40,485.15
  6. Step 6: Final answer
    x = 16,357.93

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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.