Home / 98,559.57-135,964.64-64,553.09

Finding the Fourth Proportional to 98,559.57, 135,964.64 and 64,553.09

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Solution

The fourth proportional to 98,559.57, 135,964.64 and 64,553.09 is: 89,052.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,559.57 : 135,964.64 = 64,553.09 : x
  2. Step 2: Convert to fraction form
    98,559.57/135,964.64 = 64,553.09/x
  3. Step 3: Cross multiply
    98,559.57x = 135,964.64 × 64,553.09
  4. Step 4: Simplify right side
    98,559.57x = 8,776,938,144.03
  5. Step 5: Solve for x
    x = 8,776,938,144.03/98,559.57
  6. Step 6: Final answer
    x = 89,052.11

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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.