Home / 83,424.88-125,136.26-20,245.53

Finding the Fourth Proportional to 83,424.88, 125,136.26 and 20,245.53

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Solution

The fourth proportional to 83,424.88, 125,136.26 and 20,245.53 is: 30,368.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,424.88 : 125,136.26 = 20,245.53 : x
  2. Step 2: Convert to fraction form
    83,424.88/125,136.26 = 20,245.53/x
  3. Step 3: Cross multiply
    83,424.88x = 125,136.26 × 20,245.53
  4. Step 4: Simplify right side
    83,424.88x = 2,533,449,905.92
  5. Step 5: Solve for x
    x = 2,533,449,905.92/83,424.88
  6. Step 6: Final answer
    x = 30,368.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.