Home / 79,149.36-109,228.59-43,342.77

Finding the Fourth Proportional to 79,149.36, 109,228.59 and 43,342.77

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Solution

The fourth proportional to 79,149.36, 109,228.59 and 43,342.77 is: 59,814.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,149.36 : 109,228.59 = 43,342.77 : x
  2. Step 2: Convert to fraction form
    79,149.36/109,228.59 = 43,342.77/x
  3. Step 3: Cross multiply
    79,149.36x = 109,228.59 × 43,342.77
  4. Step 4: Simplify right side
    79,149.36x = 4,734,269,653.79
  5. Step 5: Solve for x
    x = 4,734,269,653.79/79,149.36
  6. Step 6: Final answer
    x = 59,814.38

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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.