Home / 56,917.12-78,544.32-31,768.96

Finding the Fourth Proportional to 56,917.12, 78,544.32 and 31,768.96

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Solution

The fourth proportional to 56,917.12, 78,544.32 and 31,768.96 is: 43,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,917.12 : 78,544.32 = 31,768.96 : x
  2. Step 2: Convert to fraction form
    56,917.12/78,544.32 = 31,768.96/x
  3. Step 3: Cross multiply
    56,917.12x = 78,544.32 × 31,768.96
  4. Step 4: Simplify right side
    56,917.12x = 2,495,271,360.31
  5. Step 5: Solve for x
    x = 2,495,271,360.31/56,917.12
  6. Step 6: Final answer
    x = 43,840.44

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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.