Home / 85,376.31-117,833.16-49,587.09

Finding the Fourth Proportional to 85,376.31, 117,833.16 and 49,587.09

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Solution

The fourth proportional to 85,376.31, 117,833.16 and 49,587.09 is: 68,438.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,376.31 : 117,833.16 = 49,587.09 : x
  2. Step 2: Convert to fraction form
    85,376.31/117,833.16 = 49,587.09/x
  3. Step 3: Cross multiply
    85,376.31x = 117,833.16 × 49,587.09
  4. Step 4: Simplify right side
    85,376.31x = 5,843,002,835.59
  5. Step 5: Solve for x
    x = 5,843,002,835.59/85,376.31
  6. Step 6: Final answer
    x = 68,438.22

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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.