Home / 85,730.61-118,321.73-51,743.94

Finding the Fourth Proportional to 85,730.61, 118,321.73 and 51,743.94

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Solution

The fourth proportional to 85,730.61, 118,321.73 and 51,743.94 is: 71,414.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,730.61 : 118,321.73 = 51,743.94 : x
  2. Step 2: Convert to fraction form
    85,730.61/118,321.73 = 51,743.94/x
  3. Step 3: Cross multiply
    85,730.61x = 118,321.73 × 51,743.94
  4. Step 4: Simplify right side
    85,730.61x = 6,122,432,239.10
  5. Step 5: Solve for x
    x = 6,122,432,239.10/85,730.61
  6. Step 6: Final answer
    x = 71,414.78

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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.