Home / 79,661.43-109,932.12-45,669.96

Finding the Fourth Proportional to 79,661.43, 109,932.12 and 45,669.96

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Solution

The fourth proportional to 79,661.43, 109,932.12 and 45,669.96 is: 63,024.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,661.43 : 109,932.12 = 45,669.96 : x
  2. Step 2: Convert to fraction form
    79,661.43/109,932.12 = 45,669.96/x
  3. Step 3: Cross multiply
    79,661.43x = 109,932.12 × 45,669.96
  4. Step 4: Simplify right side
    79,661.43x = 5,020,595,523.12
  5. Step 5: Solve for x
    x = 5,020,595,523.12/79,661.43
  6. Step 6: Final answer
    x = 63,024.17

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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.