Home / 64,890.25-89,467.41-54,150.60

Finding the Fourth Proportional to 64,890.25, 89,467.41 and 54,150.60

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Solution

The fourth proportional to 64,890.25, 89,467.41 and 54,150.60 is: 74,660.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,890.25 : 89,467.41 = 54,150.60 : x
  2. Step 2: Convert to fraction form
    64,890.25/89,467.41 = 54,150.60/x
  3. Step 3: Cross multiply
    64,890.25x = 89,467.41 × 54,150.60
  4. Step 4: Simplify right side
    64,890.25x = 4,844,713,484.61
  5. Step 5: Solve for x
    x = 4,844,713,484.61/64,890.25
  6. Step 6: Final answer
    x = 74,660.11

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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.