Home / 80,571.52-111,157.68-59,401.12

Finding the Fourth Proportional to 80,571.52, 111,157.68 and 59,401.12

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Solution

The fourth proportional to 80,571.52, 111,157.68 and 59,401.12 is: 81,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,571.52 : 111,157.68 = 59,401.12 : x
  2. Step 2: Convert to fraction form
    80,571.52/111,157.68 = 59,401.12/x
  3. Step 3: Cross multiply
    80,571.52x = 111,157.68 × 59,401.12
  4. Step 4: Simplify right side
    80,571.52x = 6,602,890,688.60
  5. Step 5: Solve for x
    x = 6,602,890,688.60/80,571.52
  6. Step 6: Final answer
    x = 81,950.68

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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.