Home / 81,512.46-112,481.06-45,701.55

Finding the Fourth Proportional to 81,512.46, 112,481.06 and 45,701.55

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Solution

The fourth proportional to 81,512.46, 112,481.06 and 45,701.55 is: 63,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,512.46 : 112,481.06 = 45,701.55 : x
  2. Step 2: Convert to fraction form
    81,512.46/112,481.06 = 45,701.55/x
  3. Step 3: Cross multiply
    81,512.46x = 112,481.06 × 45,701.55
  4. Step 4: Simplify right side
    81,512.46x = 5,140,558,559.14
  5. Step 5: Solve for x
    x = 5,140,558,559.14/81,512.46
  6. Step 6: Final answer
    x = 63,064.70

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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.