Home / 85,517.37-128,226.85-26,337.15

Finding the Fourth Proportional to 85,517.37, 128,226.85 and 26,337.15

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Solution

The fourth proportional to 85,517.37, 128,226.85 and 26,337.15 is: 39,490.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,517.37 : 128,226.85 = 26,337.15 : x
  2. Step 2: Convert to fraction form
    85,517.37/128,226.85 = 26,337.15/x
  3. Step 3: Cross multiply
    85,517.37x = 128,226.85 × 26,337.15
  4. Step 4: Simplify right side
    85,517.37x = 3,377,129,716.63
  5. Step 5: Solve for x
    x = 3,377,129,716.63/85,517.37
  6. Step 6: Final answer
    x = 39,490.57

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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.