Home / 85,347.44-117,781.08-49,540.40

Finding the Fourth Proportional to 85,347.44, 117,781.08 and 49,540.40

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Solution

The fourth proportional to 85,347.44, 117,781.08 and 49,540.40 is: 68,366.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,347.44 : 117,781.08 = 49,540.40 : x
  2. Step 2: Convert to fraction form
    85,347.44/117,781.08 = 49,540.40/x
  3. Step 3: Cross multiply
    85,347.44x = 117,781.08 × 49,540.40
  4. Step 4: Simplify right side
    85,347.44x = 5,834,921,815.63
  5. Step 5: Solve for x
    x = 5,834,921,815.63/85,347.44
  6. Step 6: Final answer
    x = 68,366.69

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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.