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Finding the Fourth Proportional to 69,683.40, 96,160.88 and 39,471.51

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Solution

The fourth proportional to 69,683.40, 96,160.88 and 39,471.51 is: 54,469.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,683.40 : 96,160.88 = 39,471.51 : x
  2. Step 2: Convert to fraction form
    69,683.40/96,160.88 = 39,471.51/x
  3. Step 3: Cross multiply
    69,683.40x = 96,160.88 × 39,471.51
  4. Step 4: Simplify right side
    69,683.40x = 3,795,614,939.17
  5. Step 5: Solve for x
    x = 3,795,614,939.17/69,683.40
  6. Step 6: Final answer
    x = 54,469.43

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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.