Home / 82,780.80-124,190.48-23,617.28

Finding the Fourth Proportional to 82,780.80, 124,190.48 and 23,617.28

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Solution

The fourth proportional to 82,780.80, 124,190.48 and 23,617.28 is: 35,431.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,780.80 : 124,190.48 = 23,617.28 : x
  2. Step 2: Convert to fraction form
    82,780.80/124,190.48 = 23,617.28/x
  3. Step 3: Cross multiply
    82,780.80x = 124,190.48 × 23,617.28
  4. Step 4: Simplify right side
    82,780.80x = 2,933,041,339.49
  5. Step 5: Solve for x
    x = 2,933,041,339.49/82,780.80
  6. Step 6: Final answer
    x = 35,431.42

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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.