Home / 80,863.10-121,251.45-34,063.10

Finding the Fourth Proportional to 80,863.10, 121,251.45 and 34,063.10

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Solution

The fourth proportional to 80,863.10, 121,251.45 and 34,063.10 is: 51,076.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,863.10 : 121,251.45 = 34,063.10 : x
  2. Step 2: Convert to fraction form
    80,863.10/121,251.45 = 34,063.10/x
  3. Step 3: Cross multiply
    80,863.10x = 121,251.45 × 34,063.10
  4. Step 4: Simplify right side
    80,863.10x = 4,130,200,266.50
  5. Step 5: Solve for x
    x = 4,130,200,266.50/80,863.10
  6. Step 6: Final answer
    x = 51,076.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.