Home / 89,191.82-133,788.54-38,581.40

Finding the Fourth Proportional to 89,191.82, 133,788.54 and 38,581.40

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Solution

The fourth proportional to 89,191.82, 133,788.54 and 38,581.40 is: 57,872.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,191.82 : 133,788.54 = 38,581.40 : x
  2. Step 2: Convert to fraction form
    89,191.82/133,788.54 = 38,581.40/x
  3. Step 3: Cross multiply
    89,191.82x = 133,788.54 × 38,581.40
  4. Step 4: Simplify right side
    89,191.82x = 5,161,749,177.16
  5. Step 5: Solve for x
    x = 5,161,749,177.16/89,191.82
  6. Step 6: Final answer
    x = 57,872.45

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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.