Home / 86,059.14-129,085.20-29,911.98

Finding the Fourth Proportional to 86,059.14, 129,085.20 and 29,911.98

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Solution

The fourth proportional to 86,059.14, 129,085.20 and 29,911.98 is: 44,866.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,059.14 : 129,085.20 = 29,911.98 : x
  2. Step 2: Convert to fraction form
    86,059.14/129,085.20 = 29,911.98/x
  3. Step 3: Cross multiply
    86,059.14x = 129,085.20 × 29,911.98
  4. Step 4: Simplify right side
    86,059.14x = 3,861,193,920.70
  5. Step 5: Solve for x
    x = 3,861,193,920.70/86,059.14
  6. Step 6: Final answer
    x = 44,866.75

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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.