Home / 85,633.20-128,462.04-26,474.04

Finding the Fourth Proportional to 85,633.20, 128,462.04 and 26,474.04

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Solution

The fourth proportional to 85,633.20, 128,462.04 and 26,474.04 is: 39,714.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,633.20 : 128,462.04 = 26,474.04 : x
  2. Step 2: Convert to fraction form
    85,633.20/128,462.04 = 26,474.04/x
  3. Step 3: Cross multiply
    85,633.20x = 128,462.04 × 26,474.04
  4. Step 4: Simplify right side
    85,633.20x = 3,400,909,185.44
  5. Step 5: Solve for x
    x = 3,400,909,185.44/85,633.20
  6. Step 6: Final answer
    x = 39,714.84

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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.