Home / 81,717.54-112,757.94-45,900.70

Finding the Fourth Proportional to 81,717.54, 112,757.94 and 45,900.70

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Solution

The fourth proportional to 81,717.54, 112,757.94 and 45,900.70 is: 63,336.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,717.54 : 112,757.94 = 45,900.70 : x
  2. Step 2: Convert to fraction form
    81,717.54/112,757.94 = 45,900.70/x
  3. Step 3: Cross multiply
    81,717.54x = 112,757.94 × 45,900.70
  4. Step 4: Simplify right side
    81,717.54x = 5,175,668,376.56
  5. Step 5: Solve for x
    x = 5,175,668,376.56/81,717.54
  6. Step 6: Final answer
    x = 63,336.08

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1.5x scale

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.