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Finding the Fourth Proportional to 85,083.64, 127,620.28 and 37,684.81

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Solution

The fourth proportional to 85,083.64, 127,620.28 and 37,684.81 is: 56,524.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,083.64 : 127,620.28 = 37,684.81 : x
  2. Step 2: Convert to fraction form
    85,083.64/127,620.28 = 37,684.81/x
  3. Step 3: Cross multiply
    85,083.64x = 127,620.28 × 37,684.81
  4. Step 4: Simplify right side
    85,083.64x = 4,809,346,003.95
  5. Step 5: Solve for x
    x = 4,809,346,003.95/85,083.64
  6. Step 6: Final answer
    x = 56,524.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.