Home / 84,421.92-126,541.74-54,860.96

Finding the Fourth Proportional to 84,421.92, 126,541.74 and 54,860.96

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Solution

The fourth proportional to 84,421.92, 126,541.74 and 54,860.96 is: 82,232.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,421.92 : 126,541.74 = 54,860.96 : x
  2. Step 2: Convert to fraction form
    84,421.92/126,541.74 = 54,860.96/x
  3. Step 3: Cross multiply
    84,421.92x = 126,541.74 × 54,860.96
  4. Step 4: Simplify right side
    84,421.92x = 6,942,201,336.47
  5. Step 5: Solve for x
    x = 6,942,201,336.47/84,421.92
  6. Step 6: Final answer
    x = 82,232.21

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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.