Home / 89,720.31-134,601.29-30,556.49

Finding the Fourth Proportional to 89,720.31, 134,601.29 and 30,556.49

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Solution

The fourth proportional to 89,720.31, 134,601.29 and 30,556.49 is: 45,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,720.31 : 134,601.29 = 30,556.49 : x
  2. Step 2: Convert to fraction form
    89,720.31/134,601.29 = 30,556.49/x
  3. Step 3: Cross multiply
    89,720.31x = 134,601.29 × 30,556.49
  4. Step 4: Simplify right side
    89,720.31x = 4,112,943,189.68
  5. Step 5: Solve for x
    x = 4,112,943,189.68/89,720.31
  6. Step 6: Final answer
    x = 45,841.83

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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.