Home / 66,591.12-99,886.50-54,857.16

Finding the Fourth Proportional to 66,591.12, 99,886.50 and 54,857.16

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Solution

The fourth proportional to 66,591.12, 99,886.50 and 54,857.16 is: 82,285.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591.12 : 99,886.50 = 54,857.16 : x
  2. Step 2: Convert to fraction form
    66,591.12/99,886.50 = 54,857.16/x
  3. Step 3: Cross multiply
    66,591.12x = 99,886.50 × 54,857.16
  4. Step 4: Simplify right side
    66,591.12x = 5,479,489,712.34
  5. Step 5: Solve for x
    x = 5,479,489,712.34/66,591.12
  6. Step 6: Final answer
    x = 82,285.59

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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.