Home / 85,832.46-128,765.09-26,665.91

Finding the Fourth Proportional to 85,832.46, 128,765.09 and 26,665.91

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Solution

The fourth proportional to 85,832.46, 128,765.09 and 26,665.91 is: 40,003.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,832.46 : 128,765.09 = 26,665.91 : x
  2. Step 2: Convert to fraction form
    85,832.46/128,765.09 = 26,665.91/x
  3. Step 3: Cross multiply
    85,832.46x = 128,765.09 × 26,665.91
  4. Step 4: Simplify right side
    85,832.46x = 3,433,638,206.79
  5. Step 5: Solve for x
    x = 3,433,638,206.79/85,832.46
  6. Step 6: Final answer
    x = 40,003.96

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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.