Home / 86,344.75-129,511.18-53,069.95

Finding the Fourth Proportional to 86,344.75, 129,511.18 and 53,069.95

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Solution

The fourth proportional to 86,344.75, 129,511.18 and 53,069.95 is: 79,601.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,344.75 : 129,511.18 = 53,069.95 : x
  2. Step 2: Convert to fraction form
    86,344.75/129,511.18 = 53,069.95/x
  3. Step 3: Cross multiply
    86,344.75x = 129,511.18 × 53,069.95
  4. Step 4: Simplify right side
    86,344.75x = 6,873,151,847.04
  5. Step 5: Solve for x
    x = 6,873,151,847.04/86,344.75
  6. Step 6: Final answer
    x = 79,601.27

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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.