Home / 85,634.62-128,419.98-29,458.84

Finding the Fourth Proportional to 85,634.62, 128,419.98 and 29,458.84

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Solution

The fourth proportional to 85,634.62, 128,419.98 and 29,458.84 is: 44,177.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,634.62 : 128,419.98 = 29,458.84 : x
  2. Step 2: Convert to fraction form
    85,634.62/128,419.98 = 29,458.84/x
  3. Step 3: Cross multiply
    85,634.62x = 128,419.98 × 29,458.84
  4. Step 4: Simplify right side
    85,634.62x = 3,783,103,643.62
  5. Step 5: Solve for x
    x = 3,783,103,643.62/85,634.62
  6. Step 6: Final answer
    x = 44,177.27

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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.