Home / 78,816.99-108,770.07-43,008.97

Finding the Fourth Proportional to 78,816.99, 108,770.07 and 43,008.97

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Solution

The fourth proportional to 78,816.99, 108,770.07 and 43,008.97 is: 59,353.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,816.99 : 108,770.07 = 43,008.97 : x
  2. Step 2: Convert to fraction form
    78,816.99/108,770.07 = 43,008.97/x
  3. Step 3: Cross multiply
    78,816.99x = 108,770.07 × 43,008.97
  4. Step 4: Simplify right side
    78,816.99x = 4,678,088,739.71
  5. Step 5: Solve for x
    x = 4,678,088,739.71/78,816.99
  6. Step 6: Final answer
    x = 59,353.81

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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.