Home / 45,118.93-67,701.45-30,136.26

Finding the Fourth Proportional to 45,118.93, 67,701.45 and 30,136.26

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Solution

The fourth proportional to 45,118.93, 67,701.45 and 30,136.26 is: 45,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,118.93 : 67,701.45 = 30,136.26 : x
  2. Step 2: Convert to fraction form
    45,118.93/67,701.45 = 30,136.26/x
  3. Step 3: Cross multiply
    45,118.93x = 67,701.45 × 30,136.26
  4. Step 4: Simplify right side
    45,118.93x = 2,040,268,499.58
  5. Step 5: Solve for x
    x = 2,040,268,499.58/45,118.93
  6. Step 6: Final answer
    x = 45,219.79

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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.