Home / 77,185.15-115,658.16-53,538.67

Finding the Fourth Proportional to 77,185.15, 115,658.16 and 53,538.67

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Solution

The fourth proportional to 77,185.15, 115,658.16 and 53,538.67 is: 80,225.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,185.15 : 115,658.16 = 53,538.67 : x
  2. Step 2: Convert to fraction form
    77,185.15/115,658.16 = 53,538.67/x
  3. Step 3: Cross multiply
    77,185.15x = 115,658.16 × 53,538.67
  4. Step 4: Simplify right side
    77,185.15x = 6,192,183,771.90
  5. Step 5: Solve for x
    x = 6,192,183,771.90/77,185.15
  6. Step 6: Final answer
    x = 80,225.07

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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.