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Finding the Fourth Proportional to 90,525.92, 135,780.91 and 40,592.62

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Solution

The fourth proportional to 90,525.92, 135,780.91 and 40,592.62 is: 60,885.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,525.92 : 135,780.91 = 40,592.62 : x
  2. Step 2: Convert to fraction form
    90,525.92/135,780.91 = 40,592.62/x
  3. Step 3: Cross multiply
    90,525.92x = 135,780.91 × 40,592.62
  4. Step 4: Simplify right side
    90,525.92x = 5,511,702,441.95
  5. Step 5: Solve for x
    x = 5,511,702,441.95/90,525.92
  6. Step 6: Final answer
    x = 60,885.35

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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.