Home / 87,898.45-121,299.81-47,612.11

Finding the Fourth Proportional to 87,898.45, 121,299.81 and 47,612.11

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Solution

The fourth proportional to 87,898.45, 121,299.81 and 47,612.11 is: 65,704.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,898.45 : 121,299.81 = 47,612.11 : x
  2. Step 2: Convert to fraction form
    87,898.45/121,299.81 = 47,612.11/x
  3. Step 3: Cross multiply
    87,898.45x = 121,299.81 × 47,612.11
  4. Step 4: Simplify right side
    87,898.45x = 5,775,339,896.70
  5. Step 5: Solve for x
    x = 5,775,339,896.70/87,898.45
  6. Step 6: Final answer
    x = 65,704.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.