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Finding the Fourth Proportional to 85,080.48, 127,627.20 and 25,921.20

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Solution

The fourth proportional to 85,080.48, 127,627.20 and 25,921.20 is: 38,883.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,080.48 : 127,627.20 = 25,921.20 : x
  2. Step 2: Convert to fraction form
    85,080.48/127,627.20 = 25,921.20/x
  3. Step 3: Cross multiply
    85,080.48x = 127,627.20 × 25,921.20
  4. Step 4: Simplify right side
    85,080.48x = 3,308,250,176.64
  5. Step 5: Solve for x
    x = 3,308,250,176.64/85,080.48
  6. Step 6: Final answer
    x = 38,883.77

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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.