Home / 85,115.19-117,454.46-48,814.76

Finding the Fourth Proportional to 85,115.19, 117,454.46 and 48,814.76

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Solution

The fourth proportional to 85,115.19, 117,454.46 and 48,814.76 is: 67,361.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,115.19 : 117,454.46 = 48,814.76 : x
  2. Step 2: Convert to fraction form
    85,115.19/117,454.46 = 48,814.76/x
  3. Step 3: Cross multiply
    85,115.19x = 117,454.46 × 48,814.76
  4. Step 4: Simplify right side
    85,115.19x = 5,733,511,691.50
  5. Step 5: Solve for x
    x = 5,733,511,691.50/85,115.19
  6. Step 6: Final answer
    x = 67,361.79

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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.