Home / 89,388.90-134,132.60-54,353.16

Finding the Fourth Proportional to 89,388.90, 134,132.60 and 54,353.16

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Solution

The fourth proportional to 89,388.90, 134,132.60 and 54,353.16 is: 81,559.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,388.90 : 134,132.60 = 54,353.16 : x
  2. Step 2: Convert to fraction form
    89,388.90/134,132.60 = 54,353.16/x
  3. Step 3: Cross multiply
    89,388.90x = 134,132.60 × 54,353.16
  4. Step 4: Simplify right side
    89,388.90x = 7,290,530,669.02
  5. Step 5: Solve for x
    x = 7,290,530,669.02/89,388.90
  6. Step 6: Final answer
    x = 81,559.69

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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.