Home / 89,489.09-134,149.80-30,283.31

Finding the Fourth Proportional to 89,489.09, 134,149.80 and 30,283.31

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Solution

The fourth proportional to 89,489.09, 134,149.80 and 30,283.31 is: 45,396.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,489.09 : 134,149.80 = 30,283.31 : x
  2. Step 2: Convert to fraction form
    89,489.09/134,149.80 = 30,283.31/x
  3. Step 3: Cross multiply
    89,489.09x = 134,149.80 × 30,283.31
  4. Step 4: Simplify right side
    89,489.09x = 4,062,499,979.84
  5. Step 5: Solve for x
    x = 4,062,499,979.84/89,489.09
  6. Step 6: Final answer
    x = 45,396.60

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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.