Home / 76,892.09-115,297.02-39,436.88

Finding the Fourth Proportional to 76,892.09, 115,297.02 and 39,436.88

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Solution

The fourth proportional to 76,892.09, 115,297.02 and 39,436.88 is: 59,134.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,892.09 : 115,297.02 = 39,436.88 : x
  2. Step 2: Convert to fraction form
    76,892.09/115,297.02 = 39,436.88/x
  3. Step 3: Cross multiply
    76,892.09x = 115,297.02 × 39,436.88
  4. Step 4: Simplify right side
    76,892.09x = 4,546,954,165.61
  5. Step 5: Solve for x
    x = 4,546,954,165.61/76,892.09
  6. Step 6: Final answer
    x = 59,134.23

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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.