Home / 85,917.44-118,560-47,678.96

Finding the Fourth Proportional to 85,917.44, 118,560 and 47,678.96

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Solution

The fourth proportional to 85,917.44, 118,560 and 47,678.96 is: 65,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,917.44 : 118,560 = 47,678.96 : x
  2. Step 2: Convert to fraction form
    85,917.44/118,560 = 47,678.96/x
  3. Step 3: Cross multiply
    85,917.44x = 118,560 × 47,678.96
  4. Step 4: Simplify right side
    85,917.44x = 5,652,817,497.60
  5. Step 5: Solve for x
    x = 5,652,817,497.60/85,917.44
  6. Step 6: Final answer
    x = 65,793.60

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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.