Home / 79,136.07-109,209.15-43,325.52

Finding the Fourth Proportional to 79,136.07, 109,209.15 and 43,325.52

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Solution

The fourth proportional to 79,136.07, 109,209.15 and 43,325.52 is: 59,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,136.07 : 109,209.15 = 43,325.52 : x
  2. Step 2: Convert to fraction form
    79,136.07/109,209.15 = 43,325.52/x
  3. Step 3: Cross multiply
    79,136.07x = 109,209.15 × 43,325.52
  4. Step 4: Simplify right side
    79,136.07x = 4,731,543,212.51
  5. Step 5: Solve for x
    x = 4,731,543,212.51/79,136.07
  6. Step 6: Final answer
    x = 59,789.97

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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.