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Finding the Fourth Proportional to 45,207.76, 67,811.64 and 17,505.76

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Solution

The fourth proportional to 45,207.76, 67,811.64 and 17,505.76 is: 26,258.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,207.76 : 67,811.64 = 17,505.76 : x
  2. Step 2: Convert to fraction form
    45,207.76/67,811.64 = 17,505.76/x
  3. Step 3: Cross multiply
    45,207.76x = 67,811.64 × 17,505.76
  4. Step 4: Simplify right side
    45,207.76x = 1,187,094,295.05
  5. Step 5: Solve for x
    x = 1,187,094,295.05/45,207.76
  6. Step 6: Final answer
    x = 26,258.64

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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.