Home / 90,672.44-136,238.28-57,408.14

Finding the Fourth Proportional to 90,672.44, 136,238.28 and 57,408.14

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Solution

The fourth proportional to 90,672.44, 136,238.28 and 57,408.14 is: 86,257.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,672.44 : 136,238.28 = 57,408.14 : x
  2. Step 2: Convert to fraction form
    90,672.44/136,238.28 = 57,408.14/x
  3. Step 3: Cross multiply
    90,672.44x = 136,238.28 × 57,408.14
  4. Step 4: Simplify right side
    90,672.44x = 7,821,186,251.60
  5. Step 5: Solve for x
    x = 7,821,186,251.60/90,672.44
  6. Step 6: Final answer
    x = 86,257.59

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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.