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Finding the Fourth Proportional to 90,168.90, 135,130.14 and 33,952.56

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Solution

The fourth proportional to 90,168.90, 135,130.14 and 33,952.56 is: 50,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,168.90 : 135,130.14 = 33,952.56 : x
  2. Step 2: Convert to fraction form
    90,168.90/135,130.14 = 33,952.56/x
  3. Step 3: Cross multiply
    90,168.90x = 135,130.14 × 33,952.56
  4. Step 4: Simplify right side
    90,168.90x = 4,588,014,186.16
  5. Step 5: Solve for x
    x = 4,588,014,186.16/90,168.90
  6. Step 6: Final answer
    x = 50,882.45

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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.