Home / 80,834.25-121,044.34-67,474.03

Finding the Fourth Proportional to 80,834.25, 121,044.34 and 67,474.03

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Solution

The fourth proportional to 80,834.25, 121,044.34 and 67,474.03 is: 101,038.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,834.25 : 121,044.34 = 67,474.03 : x
  2. Step 2: Convert to fraction form
    80,834.25/121,044.34 = 67,474.03/x
  3. Step 3: Cross multiply
    80,834.25x = 121,044.34 × 67,474.03
  4. Step 4: Simplify right side
    80,834.25x = 8,167,349,428.49
  5. Step 5: Solve for x
    x = 8,167,349,428.49/80,834.25
  6. Step 6: Final answer
    x = 101,038.23

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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.