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Finding the Fourth Proportional to 85,173.76, 127,673.60 and 29,724.16

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Solution

The fourth proportional to 85,173.76, 127,673.60 and 29,724.16 is: 44,555.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,173.76 : 127,673.60 = 29,724.16 : x
  2. Step 2: Convert to fraction form
    85,173.76/127,673.60 = 29,724.16/x
  3. Step 3: Cross multiply
    85,173.76x = 127,673.60 × 29,724.16
  4. Step 4: Simplify right side
    85,173.76x = 3,794,990,514.18
  5. Step 5: Solve for x
    x = 3,794,990,514.18/85,173.76
  6. Step 6: Final answer
    x = 44,555.86

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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.