Home / 86,658.39-119,520.63-56,453.22

Finding the Fourth Proportional to 86,658.39, 119,520.63 and 56,453.22

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Solution

The fourth proportional to 86,658.39, 119,520.63 and 56,453.22 is: 77,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,658.39 : 119,520.63 = 56,453.22 : x
  2. Step 2: Convert to fraction form
    86,658.39/119,520.63 = 56,453.22/x
  3. Step 3: Cross multiply
    86,658.39x = 119,520.63 × 56,453.22
  4. Step 4: Simplify right side
    86,658.39x = 6,747,324,419.93
  5. Step 5: Solve for x
    x = 6,747,324,419.93/86,658.39
  6. Step 6: Final answer
    x = 77,861.18

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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.