Home / 85,471.33-128,221.59-26,305.69

Finding the Fourth Proportional to 85,471.33, 128,221.59 and 26,305.69

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Solution

The fourth proportional to 85,471.33, 128,221.59 and 26,305.69 is: 39,463.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,471.33 : 128,221.59 = 26,305.69 : x
  2. Step 2: Convert to fraction form
    85,471.33/128,221.59 = 26,305.69/x
  3. Step 3: Cross multiply
    85,471.33x = 128,221.59 × 26,305.69
  4. Step 4: Simplify right side
    85,471.33x = 3,372,957,397.85
  5. Step 5: Solve for x
    x = 3,372,957,397.85/85,471.33
  6. Step 6: Final answer
    x = 39,463.03

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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.