Home / 78,816.46-108,764.58-43,006.48

Finding the Fourth Proportional to 78,816.46, 108,764.58 and 43,006.48

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Solution

The fourth proportional to 78,816.46, 108,764.58 and 43,006.48 is: 59,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,816.46 : 108,764.58 = 43,006.48 : x
  2. Step 2: Convert to fraction form
    78,816.46/108,764.58 = 43,006.48/x
  3. Step 3: Cross multiply
    78,816.46x = 108,764.58 × 43,006.48
  4. Step 4: Simplify right side
    78,816.46x = 4,677,581,734.48
  5. Step 5: Solve for x
    x = 4,677,581,734.48/78,816.46
  6. Step 6: Final answer
    x = 59,347.78

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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.