Home / 86,087.73-129,057.63-29,920.55

Finding the Fourth Proportional to 86,087.73, 129,057.63 and 29,920.55

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Solution

The fourth proportional to 86,087.73, 129,057.63 and 29,920.55 is: 44,855.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,087.73 : 129,057.63 = 29,920.55 : x
  2. Step 2: Convert to fraction form
    86,087.73/129,057.63 = 29,920.55/x
  3. Step 3: Cross multiply
    86,087.73x = 129,057.63 × 29,920.55
  4. Step 4: Simplify right side
    86,087.73x = 3,861,474,626.01
  5. Step 5: Solve for x
    x = 3,861,474,626.01/86,087.73
  6. Step 6: Final answer
    x = 44,855.11

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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.