Home / 82,135.95-113,359.26-49,886.88

Finding the Fourth Proportional to 82,135.95, 113,359.26 and 49,886.88

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Solution

The fourth proportional to 82,135.95, 113,359.26 and 49,886.88 is: 68,850.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,135.95 : 113,359.26 = 49,886.88 : x
  2. Step 2: Convert to fraction form
    82,135.95/113,359.26 = 49,886.88/x
  3. Step 3: Cross multiply
    82,135.95x = 113,359.26 × 49,886.88
  4. Step 4: Simplify right side
    82,135.95x = 5,655,139,800.51
  5. Step 5: Solve for x
    x = 5,655,139,800.51/82,135.95
  6. Step 6: Final answer
    x = 68,850.97

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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.