Home / 83,051.40-124,562.70-30,433.80

Finding the Fourth Proportional to 83,051.40, 124,562.70 and 30,433.80

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Solution

The fourth proportional to 83,051.40, 124,562.70 and 30,433.80 is: 45,645.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,051.40 : 124,562.70 = 30,433.80 : x
  2. Step 2: Convert to fraction form
    83,051.40/124,562.70 = 30,433.80/x
  3. Step 3: Cross multiply
    83,051.40x = 124,562.70 × 30,433.80
  4. Step 4: Simplify right side
    83,051.40x = 3,790,916,299.26
  5. Step 5: Solve for x
    x = 3,790,916,299.26/83,051.40
  6. Step 6: Final answer
    x = 45,645.42

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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.