Home / 67,428.30-101,153.40-25,311.69

Finding the Fourth Proportional to 67,428.30, 101,153.40 and 25,311.69

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Solution

The fourth proportional to 67,428.30, 101,153.40 and 25,311.69 is: 37,971.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,428.30 : 101,153.40 = 25,311.69 : x
  2. Step 2: Convert to fraction form
    67,428.30/101,153.40 = 25,311.69/x
  3. Step 3: Cross multiply
    67,428.30x = 101,153.40 × 25,311.69
  4. Step 4: Simplify right side
    67,428.30x = 2,560,363,503.25
  5. Step 5: Solve for x
    x = 2,560,363,503.25/67,428.30
  6. Step 6: Final answer
    x = 37,971.65

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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.