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Finding the Fourth Proportional to 90,308.00, 135,549.48 and 43,593.68

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Solution

The fourth proportional to 90,308.00, 135,549.48 and 43,593.68 is: 65,432.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,308.00 : 135,549.48 = 43,593.68 : x
  2. Step 2: Convert to fraction form
    90,308.00/135,549.48 = 43,593.68/x
  3. Step 3: Cross multiply
    90,308.00x = 135,549.48 × 43,593.68
  4. Step 4: Simplify right side
    90,308.00x = 5,909,101,157.64
  5. Step 5: Solve for x
    x = 5,909,101,157.64/90,308.00
  6. Step 6: Final answer
    x = 65,432.75

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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.