Home / 85,171.96-117,537.30-49,382.76

Finding the Fourth Proportional to 85,171.96, 117,537.30 and 49,382.76

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Solution

The fourth proportional to 85,171.96, 117,537.30 and 49,382.76 is: 68,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,171.96 : 117,537.30 = 49,382.76 : x
  2. Step 2: Convert to fraction form
    85,171.96/117,537.30 = 49,382.76/x
  3. Step 3: Cross multiply
    85,171.96x = 117,537.30 × 49,382.76
  4. Step 4: Simplify right side
    85,171.96x = 5,804,316,276.95
  5. Step 5: Solve for x
    x = 5,804,316,276.95/85,171.96
  6. Step 6: Final answer
    x = 68,148.21

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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.