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Finding the Fourth Proportional to 45,207.50, 67,811.26 and 17,505.50

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Solution

The fourth proportional to 45,207.50, 67,811.26 and 17,505.50 is: 26,258.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,207.50 : 67,811.26 = 17,505.50 : x
  2. Step 2: Convert to fraction form
    45,207.50/67,811.26 = 17,505.50/x
  3. Step 3: Cross multiply
    45,207.50x = 67,811.26 × 17,505.50
  4. Step 4: Simplify right side
    45,207.50x = 1,187,070,011.93
  5. Step 5: Solve for x
    x = 1,187,070,011.93/45,207.50
  6. Step 6: Final answer
    x = 26,258.25

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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.