Home / 83,677.83-115,342.70-82,018.95

Finding the Fourth Proportional to 83,677.83, 115,342.70 and 82,018.95

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Solution

The fourth proportional to 83,677.83, 115,342.70 and 82,018.95 is: 113,056.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,677.83 : 115,342.70 = 82,018.95 : x
  2. Step 2: Convert to fraction form
    83,677.83/115,342.70 = 82,018.95/x
  3. Step 3: Cross multiply
    83,677.83x = 115,342.70 × 82,018.95
  4. Step 4: Simplify right side
    83,677.83x = 9,460,286,734.07
  5. Step 5: Solve for x
    x = 9,460,286,734.07/83,677.83
  6. Step 6: Final answer
    x = 113,056.07

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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.