Home / 79,212.45-109,315.73-43,404.75

Finding the Fourth Proportional to 79,212.45, 109,315.73 and 43,404.75

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Solution

The fourth proportional to 79,212.45, 109,315.73 and 43,404.75 is: 59,899.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,212.45 : 109,315.73 = 43,404.75 : x
  2. Step 2: Convert to fraction form
    79,212.45/109,315.73 = 43,404.75/x
  3. Step 3: Cross multiply
    79,212.45x = 109,315.73 × 43,404.75
  4. Step 4: Simplify right side
    79,212.45x = 4,744,821,714.69
  5. Step 5: Solve for x
    x = 4,744,821,714.69/79,212.45
  6. Step 6: Final answer
    x = 59,899.95

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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.