Home / 79,136.45-109,208.01-45,144.88

Finding the Fourth Proportional to 79,136.45, 109,208.01 and 45,144.88

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Solution

The fourth proportional to 79,136.45, 109,208.01 and 45,144.88 is: 62,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,136.45 : 109,208.01 = 45,144.88 : x
  2. Step 2: Convert to fraction form
    79,136.45/109,208.01 = 45,144.88/x
  3. Step 3: Cross multiply
    79,136.45x = 109,208.01 × 45,144.88
  4. Step 4: Simplify right side
    79,136.45x = 4,930,182,233.47
  5. Step 5: Solve for x
    x = 4,930,182,233.47/79,136.45
  6. Step 6: Final answer
    x = 62,299.76

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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.