Home / 90,906.21-136,374.08-26,870.85

Finding the Fourth Proportional to 90,906.21, 136,374.08 and 26,870.85

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Solution

The fourth proportional to 90,906.21, 136,374.08 and 26,870.85 is: 40,310.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,906.21 : 136,374.08 = 26,870.85 : x
  2. Step 2: Convert to fraction form
    90,906.21/136,374.08 = 26,870.85/x
  3. Step 3: Cross multiply
    90,906.21x = 136,374.08 × 26,870.85
  4. Step 4: Simplify right side
    90,906.21x = 3,664,487,313.21
  5. Step 5: Solve for x
    x = 3,664,487,313.21/90,906.21
  6. Step 6: Final answer
    x = 40,310.64

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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.