Home / 45,249.74-67,805.34-18,940.16

Finding the Fourth Proportional to 45,249.74, 67,805.34 and 18,940.16

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Solution

The fourth proportional to 45,249.74, 67,805.34 and 18,940.16 is: 28,381.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,249.74 : 67,805.34 = 18,940.16 : x
  2. Step 2: Convert to fraction form
    45,249.74/67,805.34 = 18,940.16/x
  3. Step 3: Cross multiply
    45,249.74x = 67,805.34 × 18,940.16
  4. Step 4: Simplify right side
    45,249.74x = 1,284,243,988.45
  5. Step 5: Solve for x
    x = 1,284,243,988.45/45,249.74
  6. Step 6: Final answer
    x = 28,381.25

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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.