Home / 51,782.12-71,436.84-32,909.12

Finding the Fourth Proportional to 51,782.12, 71,436.84 and 32,909.12

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Solution

The fourth proportional to 51,782.12, 71,436.84 and 32,909.12 is: 45,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,782.12 : 71,436.84 = 32,909.12 : x
  2. Step 2: Convert to fraction form
    51,782.12/71,436.84 = 32,909.12/x
  3. Step 3: Cross multiply
    51,782.12x = 71,436.84 × 32,909.12
  4. Step 4: Simplify right side
    51,782.12x = 2,350,923,539.98
  5. Step 5: Solve for x
    x = 2,350,923,539.98/51,782.12
  6. Step 6: Final answer
    x = 45,400.30

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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.