Home / 69,136.50-95,402.70-38,912.16

Finding the Fourth Proportional to 69,136.50, 95,402.70 and 38,912.16

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Solution

The fourth proportional to 69,136.50, 95,402.70 and 38,912.16 is: 53,695.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,136.50 : 95,402.70 = 38,912.16 : x
  2. Step 2: Convert to fraction form
    69,136.50/95,402.70 = 38,912.16/x
  3. Step 3: Cross multiply
    69,136.50x = 95,402.70 × 38,912.16
  4. Step 4: Simplify right side
    69,136.50x = 3,712,325,126.83
  5. Step 5: Solve for x
    x = 3,712,325,126.83/69,136.50
  6. Step 6: Final answer
    x = 53,695.59

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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.