Home / 81,874.94-113,017.28-51,680.06

Finding the Fourth Proportional to 81,874.94, 113,017.28 and 51,680.06

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Solution

The fourth proportional to 81,874.94, 113,017.28 and 51,680.06 is: 71,337.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,874.94 : 113,017.28 = 51,680.06 : x
  2. Step 2: Convert to fraction form
    81,874.94/113,017.28 = 51,680.06/x
  3. Step 3: Cross multiply
    81,874.94x = 113,017.28 × 51,680.06
  4. Step 4: Simplify right side
    81,874.94x = 5,840,739,411.76
  5. Step 5: Solve for x
    x = 5,840,739,411.76/81,874.94
  6. Step 6: Final answer
    x = 71,337.33

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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.