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Finding the Fourth Proportional to 78,846.06, 108,807.12 and 43,035.96

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Solution

The fourth proportional to 78,846.06, 108,807.12 and 43,035.96 is: 59,389.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,846.06 : 108,807.12 = 43,035.96 : x
  2. Step 2: Convert to fraction form
    78,846.06/108,807.12 = 43,035.96/x
  3. Step 3: Cross multiply
    78,846.06x = 108,807.12 × 43,035.96
  4. Step 4: Simplify right side
    78,846.06x = 4,682,618,864.04
  5. Step 5: Solve for x
    x = 4,682,618,864.04/78,846.06
  6. Step 6: Final answer
    x = 59,389.38

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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.