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Finding the Fourth Proportional to 64,785.53, 89,373.47 and 37,911.41

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Solution

The fourth proportional to 64,785.53, 89,373.47 and 37,911.41 is: 52,299.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,785.53 : 89,373.47 = 37,911.41 : x
  2. Step 2: Convert to fraction form
    64,785.53/89,373.47 = 37,911.41/x
  3. Step 3: Cross multiply
    64,785.53x = 89,373.47 × 37,911.41
  4. Step 4: Simplify right side
    64,785.53x = 3,388,273,627.87
  5. Step 5: Solve for x
    x = 3,388,273,627.87/64,785.53
  6. Step 6: Final answer
    x = 52,299.86

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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.