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Finding the Fourth Proportional to 85,149.51, 127,739.73 and 35,202.48

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Solution

The fourth proportional to 85,149.51, 127,739.73 and 35,202.48 is: 52,810.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,149.51 : 127,739.73 = 35,202.48 : x
  2. Step 2: Convert to fraction form
    85,149.51/127,739.73 = 35,202.48/x
  3. Step 3: Cross multiply
    85,149.51x = 127,739.73 × 35,202.48
  4. Step 4: Simplify right side
    85,149.51x = 4,496,755,290.53
  5. Step 5: Solve for x
    x = 4,496,755,290.53/85,149.51
  6. Step 6: Final answer
    x = 52,810.11

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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.