Home / 57,267.48-79,016.58-55,379.64

Finding the Fourth Proportional to 57,267.48, 79,016.58 and 55,379.64

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Solution

The fourth proportional to 57,267.48, 79,016.58 and 55,379.64 is: 76,411.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,267.48 : 79,016.58 = 55,379.64 : x
  2. Step 2: Convert to fraction form
    57,267.48/79,016.58 = 55,379.64/x
  3. Step 3: Cross multiply
    57,267.48x = 79,016.58 × 55,379.64
  4. Step 4: Simplify right side
    57,267.48x = 4,375,909,754.43
  5. Step 5: Solve for x
    x = 4,375,909,754.43/57,267.48
  6. Step 6: Final answer
    x = 76,411.77

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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.