Home / 85,170.83-117,538.41-48,878.91

Finding the Fourth Proportional to 85,170.83, 117,538.41 and 48,878.91

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Solution

The fourth proportional to 85,170.83, 117,538.41 and 48,878.91 is: 67,454.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,170.83 : 117,538.41 = 48,878.91 : x
  2. Step 2: Convert to fraction form
    85,170.83/117,538.41 = 48,878.91/x
  3. Step 3: Cross multiply
    85,170.83x = 117,538.41 × 48,878.91
  4. Step 4: Simplify right side
    85,170.83x = 5,745,149,272.29
  5. Step 5: Solve for x
    x = 5,745,149,272.29/85,170.83
  6. Step 6: Final answer
    x = 67,454.43

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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.