Home / 56,163.12-77,517.24-38,300.76

Finding the Fourth Proportional to 56,163.12, 77,517.24 and 38,300.76

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Solution

The fourth proportional to 56,163.12, 77,517.24 and 38,300.76 is: 52,863.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,163.12 : 77,517.24 = 38,300.76 : x
  2. Step 2: Convert to fraction form
    56,163.12/77,517.24 = 38,300.76/x
  3. Step 3: Cross multiply
    56,163.12x = 77,517.24 × 38,300.76
  4. Step 4: Simplify right side
    56,163.12x = 2,968,969,205.10
  5. Step 5: Solve for x
    x = 2,968,969,205.10/56,163.12
  6. Step 6: Final answer
    x = 52,863.32

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Half scale
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Double scale
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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.