Home / 83,178.12-124,817.82-43,763.40

Finding the Fourth Proportional to 83,178.12, 124,817.82 and 43,763.40

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Solution

The fourth proportional to 83,178.12, 124,817.82 and 43,763.40 is: 65,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,178.12 : 124,817.82 = 43,763.40 : x
  2. Step 2: Convert to fraction form
    83,178.12/124,817.82 = 43,763.40/x
  3. Step 3: Cross multiply
    83,178.12x = 124,817.82 × 43,763.40
  4. Step 4: Simplify right side
    83,178.12x = 5,462,452,183.79
  5. Step 5: Solve for x
    x = 5,462,452,183.79/83,178.12
  6. Step 6: Final answer
    x = 65,671.74

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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.