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Finding the Fourth Proportional to 69,135.96, 103,680.88 and 27,005.12

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Solution

The fourth proportional to 69,135.96, 103,680.88 and 27,005.12 is: 40,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,135.96 : 103,680.88 = 27,005.12 : x
  2. Step 2: Convert to fraction form
    69,135.96/103,680.88 = 27,005.12/x
  3. Step 3: Cross multiply
    69,135.96x = 103,680.88 × 27,005.12
  4. Step 4: Simplify right side
    69,135.96x = 2,799,914,606.11
  5. Step 5: Solve for x
    x = 2,799,914,606.11/69,135.96
  6. Step 6: Final answer
    x = 40,498.67

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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.