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Finding the Fourth Proportional to 69,976.34, 96,563.86 and 39,757.67

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Solution

The fourth proportional to 69,976.34, 96,563.86 and 39,757.67 is: 54,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,976.34 : 96,563.86 = 39,757.67 : x
  2. Step 2: Convert to fraction form
    69,976.34/96,563.86 = 39,757.67/x
  3. Step 3: Cross multiply
    69,976.34x = 96,563.86 × 39,757.67
  4. Step 4: Simplify right side
    69,976.34x = 3,839,154,079.81
  5. Step 5: Solve for x
    x = 3,839,154,079.81/69,976.34
  6. Step 6: Final answer
    x = 54,863.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.