Home / 83,385.62-125,079.21-21,056.06

Finding the Fourth Proportional to 83,385.62, 125,079.21 and 21,056.06

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Solution

The fourth proportional to 83,385.62, 125,079.21 and 21,056.06 is: 31,584.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,385.62 : 125,079.21 = 21,056.06 : x
  2. Step 2: Convert to fraction form
    83,385.62/125,079.21 = 21,056.06/x
  3. Step 3: Cross multiply
    83,385.62x = 125,079.21 × 21,056.06
  4. Step 4: Simplify right side
    83,385.62x = 2,633,675,350.51
  5. Step 5: Solve for x
    x = 2,633,675,350.51/83,385.62
  6. Step 6: Final answer
    x = 31,584.29

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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.