Home / 91,175.10-125,818.35-57,201.89

Finding the Fourth Proportional to 91,175.10, 125,818.35 and 57,201.89

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Solution

The fourth proportional to 91,175.10, 125,818.35 and 57,201.89 is: 78,936.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,175.10 : 125,818.35 = 57,201.89 : x
  2. Step 2: Convert to fraction form
    91,175.10/125,818.35 = 57,201.89/x
  3. Step 3: Cross multiply
    91,175.10x = 125,818.35 × 57,201.89
  4. Step 4: Simplify right side
    91,175.10x = 7,197,046,787.59
  5. Step 5: Solve for x
    x = 7,197,046,787.59/91,175.10
  6. Step 6: Final answer
    x = 78,936.54

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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.