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Finding the Fourth Proportional to 85,585.00, 118,067.54 and 55,380.06

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Solution

The fourth proportional to 85,585.00, 118,067.54 and 55,380.06 is: 76,398.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,585.00 : 118,067.54 = 55,380.06 : x
  2. Step 2: Convert to fraction form
    85,585.00/118,067.54 = 55,380.06/x
  3. Step 3: Cross multiply
    85,585.00x = 118,067.54 × 55,380.06
  4. Step 4: Simplify right side
    85,585.00x = 6,538,587,172.35
  5. Step 5: Solve for x
    x = 6,538,587,172.35/85,585.00
  6. Step 6: Final answer
    x = 76,398.75

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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.