Home / 85,252.52-117,605.30-56,999.72

Finding the Fourth Proportional to 85,252.52, 117,605.30 and 56,999.72

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Solution

The fourth proportional to 85,252.52, 117,605.30 and 56,999.72 is: 78,630.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,252.52 : 117,605.30 = 56,999.72 : x
  2. Step 2: Convert to fraction form
    85,252.52/117,605.30 = 56,999.72/x
  3. Step 3: Cross multiply
    85,252.52x = 117,605.30 × 56,999.72
  4. Step 4: Simplify right side
    85,252.52x = 6,703,469,170.52
  5. Step 5: Solve for x
    x = 6,703,469,170.52/85,252.52
  6. Step 6: Final answer
    x = 78,630.75

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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.