Home / 78,816.60-108,767.22-43,007.35

Finding the Fourth Proportional to 78,816.60, 108,767.22 and 43,007.35

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Solution

The fourth proportional to 78,816.60, 108,767.22 and 43,007.35 is: 59,350.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,816.60 : 108,767.22 = 43,007.35 : x
  2. Step 2: Convert to fraction form
    78,816.60/108,767.22 = 43,007.35/x
  3. Step 3: Cross multiply
    78,816.60x = 108,767.22 × 43,007.35
  4. Step 4: Simplify right side
    78,816.60x = 4,677,789,684.03
  5. Step 5: Solve for x
    x = 4,677,789,684.03/78,816.60
  6. Step 6: Final answer
    x = 59,350.31

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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.