Home / 65,238.44-90,029.22-38,381.96

Finding the Fourth Proportional to 65,238.44, 90,029.22 and 38,381.96

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Solution

The fourth proportional to 65,238.44, 90,029.22 and 38,381.96 is: 52,967.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,238.44 : 90,029.22 = 38,381.96 : x
  2. Step 2: Convert to fraction form
    65,238.44/90,029.22 = 38,381.96/x
  3. Step 3: Cross multiply
    65,238.44x = 90,029.22 × 38,381.96
  4. Step 4: Simplify right side
    65,238.44x = 3,455,497,920.87
  5. Step 5: Solve for x
    x = 3,455,497,920.87/65,238.44
  6. Step 6: Final answer
    x = 52,967.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.