Home / 85,452.30-128,167.39-26,286.66

Finding the Fourth Proportional to 85,452.30, 128,167.39 and 26,286.66

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Solution

The fourth proportional to 85,452.30, 128,167.39 and 26,286.66 is: 39,426.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,452.30 : 128,167.39 = 26,286.66 : x
  2. Step 2: Convert to fraction form
    85,452.30/128,167.39 = 26,286.66/x
  3. Step 3: Cross multiply
    85,452.30x = 128,167.39 × 26,286.66
  4. Step 4: Simplify right side
    85,452.30x = 3,369,092,604.02
  5. Step 5: Solve for x
    x = 3,369,092,604.02/85,452.30
  6. Step 6: Final answer
    x = 39,426.59

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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.