Home / 81,529.88-112,511.57-47,561.85

Finding the Fourth Proportional to 81,529.88, 112,511.57 and 47,561.85

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Solution

The fourth proportional to 81,529.88, 112,511.57 and 47,561.85 is: 65,635.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,529.88 : 112,511.57 = 47,561.85 : x
  2. Step 2: Convert to fraction form
    81,529.88/112,511.57 = 47,561.85/x
  3. Step 3: Cross multiply
    81,529.88x = 112,511.57 × 47,561.85
  4. Step 4: Simplify right side
    81,529.88x = 5,351,258,177.80
  5. Step 5: Solve for x
    x = 5,351,258,177.80/81,529.88
  6. Step 6: Final answer
    x = 65,635.55

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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.