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Finding the Fourth Proportional to 45,165.78, 67,790.25 and 22,995

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Solution

The fourth proportional to 45,165.78, 67,790.25 and 22,995 is: 34,513.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,165.78 : 67,790.25 = 22,995 : x
  2. Step 2: Convert to fraction form
    45,165.78/67,790.25 = 22,995/x
  3. Step 3: Cross multiply
    45,165.78x = 67,790.25 × 22,995
  4. Step 4: Simplify right side
    45,165.78x = 1,558,836,798.75
  5. Step 5: Solve for x
    x = 1,558,836,798.75/45,165.78
  6. Step 6: Final answer
    x = 34,513.67

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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.