Home / 83,406.11-115,059.12-59,206.95

Finding the Fourth Proportional to 83,406.11, 115,059.12 and 59,206.95

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Solution

The fourth proportional to 83,406.11, 115,059.12 and 59,206.95 is: 81,676.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,406.11 : 115,059.12 = 59,206.95 : x
  2. Step 2: Convert to fraction form
    83,406.11/115,059.12 = 59,206.95/x
  3. Step 3: Cross multiply
    83,406.11x = 115,059.12 × 59,206.95
  4. Step 4: Simplify right side
    83,406.11x = 6,812,299,564.88
  5. Step 5: Solve for x
    x = 6,812,299,564.88/83,406.11
  6. Step 6: Final answer
    x = 81,676.27

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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.