Home / 78,816.96-108,765.27-43,006.98

Finding the Fourth Proportional to 78,816.96, 108,765.27 and 43,006.98

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Solution

The fourth proportional to 78,816.96, 108,765.27 and 43,006.98 is: 59,348.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,816.96 : 108,765.27 = 43,006.98 : x
  2. Step 2: Convert to fraction form
    78,816.96/108,765.27 = 43,006.98/x
  3. Step 3: Cross multiply
    78,816.96x = 108,765.27 × 43,006.98
  4. Step 4: Simplify right side
    78,816.96x = 4,677,665,791.58
  5. Step 5: Solve for x
    x = 4,677,665,791.58/78,816.96
  6. Step 6: Final answer
    x = 59,348.47

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1.5x scale

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.