Home / 79,935.96-120,040.02-76,592.28

Finding the Fourth Proportional to 79,935.96, 120,040.02 and 76,592.28

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Solution

The fourth proportional to 79,935.96, 120,040.02 and 76,592.28 is: 115,018.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,935.96 : 120,040.02 = 76,592.28 : x
  2. Step 2: Convert to fraction form
    79,935.96/120,040.02 = 76,592.28/x
  3. Step 3: Cross multiply
    79,935.96x = 120,040.02 × 76,592.28
  4. Step 4: Simplify right side
    79,935.96x = 9,194,138,823.05
  5. Step 5: Solve for x
    x = 9,194,138,823.05/79,935.96
  6. Step 6: Final answer
    x = 115,018.81

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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.