Home / 76,877.60-115,310.24-34,196.28

Finding the Fourth Proportional to 76,877.60, 115,310.24 and 34,196.28

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Solution

The fourth proportional to 76,877.60, 115,310.24 and 34,196.28 is: 51,291.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,877.60 : 115,310.24 = 34,196.28 : x
  2. Step 2: Convert to fraction form
    76,877.60/115,310.24 = 34,196.28/x
  3. Step 3: Cross multiply
    76,877.60x = 115,310.24 × 34,196.28
  4. Step 4: Simplify right side
    76,877.60x = 3,943,181,253.91
  5. Step 5: Solve for x
    x = 3,943,181,253.91/76,877.60
  6. Step 6: Final answer
    x = 51,291.68

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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.