Home / 89,016.57-133,629.35-70,310.43

Finding the Fourth Proportional to 89,016.57, 133,629.35 and 70,310.43

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Solution

The fourth proportional to 89,016.57, 133,629.35 and 70,310.43 is: 105,548.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,016.57 : 133,629.35 = 70,310.43 : x
  2. Step 2: Convert to fraction form
    89,016.57/133,629.35 = 70,310.43/x
  3. Step 3: Cross multiply
    89,016.57x = 133,629.35 × 70,310.43
  4. Step 4: Simplify right side
    89,016.57x = 9,395,536,707.57
  5. Step 5: Solve for x
    x = 9,395,536,707.57/89,016.57
  6. Step 6: Final answer
    x = 105,548.18

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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.