Home / 86,620.35-119,532.68-54,372.36

Finding the Fourth Proportional to 86,620.35, 119,532.68 and 54,372.36

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Solution

The fourth proportional to 86,620.35, 119,532.68 and 54,372.36 is: 75,031.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,620.35 : 119,532.68 = 54,372.36 : x
  2. Step 2: Convert to fraction form
    86,620.35/119,532.68 = 54,372.36/x
  3. Step 3: Cross multiply
    86,620.35x = 119,532.68 × 54,372.36
  4. Step 4: Simplify right side
    86,620.35x = 6,499,273,908.72
  5. Step 5: Solve for x
    x = 6,499,273,908.72/86,620.35
  6. Step 6: Final answer
    x = 75,031.72

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1.5x scale

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.