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Finding the Fourth Proportional to 67,633.80, 101,450.70 and 64,912.20

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Solution

The fourth proportional to 67,633.80, 101,450.70 and 64,912.20 is: 97,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,633.80 : 101,450.70 = 64,912.20 : x
  2. Step 2: Convert to fraction form
    67,633.80/101,450.70 = 64,912.20/x
  3. Step 3: Cross multiply
    67,633.80x = 101,450.70 × 64,912.20
  4. Step 4: Simplify right side
    67,633.80x = 6,585,388,128.54
  5. Step 5: Solve for x
    x = 6,585,388,128.54/67,633.80
  6. Step 6: Final answer
    x = 97,368.30

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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.