Home / 56,768.40-85,205.16-28,708.32

Finding the Fourth Proportional to 56,768.40, 85,205.16 and 28,708.32

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Solution

The fourth proportional to 56,768.40, 85,205.16 and 28,708.32 is: 43,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,768.40 : 85,205.16 = 28,708.32 : x
  2. Step 2: Convert to fraction form
    56,768.40/85,205.16 = 28,708.32/x
  3. Step 3: Cross multiply
    56,768.40x = 85,205.16 × 28,708.32
  4. Step 4: Simplify right side
    56,768.40x = 2,446,096,998.93
  5. Step 5: Solve for x
    x = 2,446,096,998.93/56,768.40
  6. Step 6: Final answer
    x = 43,089.06

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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.