Home / 86,638.66-119,555.72-50,336.88

Finding the Fourth Proportional to 86,638.66, 119,555.72 and 50,336.88

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Solution

The fourth proportional to 86,638.66, 119,555.72 and 50,336.88 is: 69,461.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,638.66 : 119,555.72 = 50,336.88 : x
  2. Step 2: Convert to fraction form
    86,638.66/119,555.72 = 50,336.88/x
  3. Step 3: Cross multiply
    86,638.66x = 119,555.72 × 50,336.88
  4. Step 4: Simplify right side
    86,638.66x = 6,018,061,930.95
  5. Step 5: Solve for x
    x = 6,018,061,930.95/86,638.66
  6. Step 6: Final answer
    x = 69,461.62

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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.