Home / 85,723.16-128,593.22-29,555.90

Finding the Fourth Proportional to 85,723.16, 128,593.22 and 29,555.90

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Solution

The fourth proportional to 85,723.16, 128,593.22 and 29,555.90 is: 44,336.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,723.16 : 128,593.22 = 29,555.90 : x
  2. Step 2: Convert to fraction form
    85,723.16/128,593.22 = 29,555.90/x
  3. Step 3: Cross multiply
    85,723.16x = 128,593.22 × 29,555.90
  4. Step 4: Simplify right side
    85,723.16x = 3,800,687,560.25
  5. Step 5: Solve for x
    x = 3,800,687,560.25/85,723.16
  6. Step 6: Final answer
    x = 44,336.77

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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.