Home / 81,206.09-121,830.15-25,044.96

Finding the Fourth Proportional to 81,206.09, 121,830.15 and 25,044.96

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Solution

The fourth proportional to 81,206.09, 121,830.15 and 25,044.96 is: 37,573.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,206.09 : 121,830.15 = 25,044.96 : x
  2. Step 2: Convert to fraction form
    81,206.09/121,830.15 = 25,044.96/x
  3. Step 3: Cross multiply
    81,206.09x = 121,830.15 × 25,044.96
  4. Step 4: Simplify right side
    81,206.09x = 3,051,230,624.39
  5. Step 5: Solve for x
    x = 3,051,230,624.39/81,206.09
  6. Step 6: Final answer
    x = 37,573.91

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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.