Home / 86,543.30-129,863.55-36,614.90

Finding the Fourth Proportional to 86,543.30, 129,863.55 and 36,614.90

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Solution

The fourth proportional to 86,543.30, 129,863.55 and 36,614.90 is: 54,942.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,543.30 : 129,863.55 = 36,614.90 : x
  2. Step 2: Convert to fraction form
    86,543.30/129,863.55 = 36,614.90/x
  3. Step 3: Cross multiply
    86,543.30x = 129,863.55 × 36,614.90
  4. Step 4: Simplify right side
    86,543.30x = 4,754,940,896.90
  5. Step 5: Solve for x
    x = 4,754,940,896.90/86,543.30
  6. Step 6: Final answer
    x = 54,942.91

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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.