Home / 92,491.20-138,882.60-53,125.20

Finding the Fourth Proportional to 92,491.20, 138,882.60 and 53,125.20

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Solution

The fourth proportional to 92,491.20, 138,882.60 and 53,125.20 is: 79,771.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,491.20 : 138,882.60 = 53,125.20 : x
  2. Step 2: Convert to fraction form
    92,491.20/138,882.60 = 53,125.20/x
  3. Step 3: Cross multiply
    92,491.20x = 138,882.60 × 53,125.20
  4. Step 4: Simplify right side
    92,491.20x = 7,378,165,901.52
  5. Step 5: Solve for x
    x = 7,378,165,901.52/92,491.20
  6. Step 6: Final answer
    x = 79,771.54

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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.