Home / 89,428.76-134,134.93-30,257.65

Finding the Fourth Proportional to 89,428.76, 134,134.93 and 30,257.65

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Solution

The fourth proportional to 89,428.76, 134,134.93 and 30,257.65 is: 45,383.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,428.76 : 134,134.93 = 30,257.65 : x
  2. Step 2: Convert to fraction form
    89,428.76/134,134.93 = 30,257.65/x
  3. Step 3: Cross multiply
    89,428.76x = 134,134.93 × 30,257.65
  4. Step 4: Simplify right side
    89,428.76x = 4,058,606,942.75
  5. Step 5: Solve for x
    x = 4,058,606,942.75/89,428.76
  6. Step 6: Final answer
    x = 45,383.69

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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.