Home / 64,979.75-89,672.33-35,171.75

Finding the Fourth Proportional to 64,979.75, 89,672.33 and 35,171.75

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Solution

The fourth proportional to 64,979.75, 89,672.33 and 35,171.75 is: 48,537.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,979.75 : 89,672.33 = 35,171.75 : x
  2. Step 2: Convert to fraction form
    64,979.75/89,672.33 = 35,171.75/x
  3. Step 3: Cross multiply
    64,979.75x = 89,672.33 × 35,171.75
  4. Step 4: Simplify right side
    64,979.75x = 3,153,932,596.82
  5. Step 5: Solve for x
    x = 3,153,932,596.82/64,979.75
  6. Step 6: Final answer
    x = 48,537.16

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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.