Home / 79,214.45-109,315.92-43,405.80

Finding the Fourth Proportional to 79,214.45, 109,315.92 and 43,405.80

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Solution

The fourth proportional to 79,214.45, 109,315.92 and 43,405.80 is: 59,900.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,214.45 : 109,315.92 = 43,405.80 : x
  2. Step 2: Convert to fraction form
    79,214.45/109,315.92 = 43,405.80/x
  3. Step 3: Cross multiply
    79,214.45x = 109,315.92 × 43,405.80
  4. Step 4: Simplify right side
    79,214.45x = 4,744,944,960.34
  5. Step 5: Solve for x
    x = 4,744,944,960.34/79,214.45
  6. Step 6: Final answer
    x = 59,900.00

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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.