Home / 82,780.40-124,125.24-32,809.88

Finding the Fourth Proportional to 82,780.40, 124,125.24 and 32,809.88

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Solution

The fourth proportional to 82,780.40, 124,125.24 and 32,809.88 is: 49,196.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,780.40 : 124,125.24 = 32,809.88 : x
  2. Step 2: Convert to fraction form
    82,780.40/124,125.24 = 32,809.88/x
  3. Step 3: Cross multiply
    82,780.40x = 124,125.24 × 32,809.88
  4. Step 4: Simplify right side
    82,780.40x = 4,072,534,229.37
  5. Step 5: Solve for x
    x = 4,072,534,229.37/82,780.40
  6. Step 6: Final answer
    x = 49,196.84

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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.