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Finding the Fourth Proportional to 45,033.30, 67,538.03 and 13,435.86

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Solution

The fourth proportional to 45,033.30, 67,538.03 and 13,435.86 is: 20,150.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,033.30 : 67,538.03 = 13,435.86 : x
  2. Step 2: Convert to fraction form
    45,033.30/67,538.03 = 13,435.86/x
  3. Step 3: Cross multiply
    45,033.30x = 67,538.03 × 13,435.86
  4. Step 4: Simplify right side
    45,033.30x = 907,431,515.76
  5. Step 5: Solve for x
    x = 907,431,515.76/45,033.30
  6. Step 6: Final answer
    x = 20,150.23

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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.