Home / 86,137.55-129,206.33-26,977.85

Finding the Fourth Proportional to 86,137.55, 129,206.33 and 26,977.85

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Solution

The fourth proportional to 86,137.55, 129,206.33 and 26,977.85 is: 40,466.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,137.55 : 129,206.33 = 26,977.85 : x
  2. Step 2: Convert to fraction form
    86,137.55/129,206.33 = 26,977.85/x
  3. Step 3: Cross multiply
    86,137.55x = 129,206.33 × 26,977.85
  4. Step 4: Simplify right side
    86,137.55x = 3,485,709,279.08
  5. Step 5: Solve for x
    x = 3,485,709,279.08/86,137.55
  6. Step 6: Final answer
    x = 40,466.78

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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.