Home / 75,676.06-113,520.60-19,515.66

Finding the Fourth Proportional to 75,676.06, 113,520.60 and 19,515.66

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Solution

The fourth proportional to 75,676.06, 113,520.60 and 19,515.66 is: 29,275.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,676.06 : 113,520.60 = 19,515.66 : x
  2. Step 2: Convert to fraction form
    75,676.06/113,520.60 = 19,515.66/x
  3. Step 3: Cross multiply
    75,676.06x = 113,520.60 × 19,515.66
  4. Step 4: Simplify right side
    75,676.06x = 2,215,429,432.60
  5. Step 5: Solve for x
    x = 2,215,429,432.60/75,676.06
  6. Step 6: Final answer
    x = 29,275.17

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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.