Home / 84,078.29-126,089.99-27,903.30

Finding the Fourth Proportional to 84,078.29, 126,089.99 and 27,903.30

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Solution

The fourth proportional to 84,078.29, 126,089.99 and 27,903.30 is: 41,845.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,078.29 : 126,089.99 = 27,903.30 : x
  2. Step 2: Convert to fraction form
    84,078.29/126,089.99 = 27,903.30/x
  3. Step 3: Cross multiply
    84,078.29x = 126,089.99 × 27,903.30
  4. Step 4: Simplify right side
    84,078.29x = 3,518,326,678.45
  5. Step 5: Solve for x
    x = 3,518,326,678.45/84,078.29
  6. Step 6: Final answer
    x = 41,845.84

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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.