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Finding the Fourth Proportional to 90,191.40, 135,182.54 and 33,995.54

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Solution

The fourth proportional to 90,191.40, 135,182.54 and 33,995.54 is: 50,953.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,191.40 : 135,182.54 = 33,995.54 : x
  2. Step 2: Convert to fraction form
    90,191.40/135,182.54 = 33,995.54/x
  3. Step 3: Cross multiply
    90,191.40x = 135,182.54 × 33,995.54
  4. Step 4: Simplify right side
    90,191.40x = 4,595,602,599.98
  5. Step 5: Solve for x
    x = 4,595,602,599.98/90,191.40
  6. Step 6: Final answer
    x = 50,953.89

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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.