Home / 89,441.78-134,154.41-30,270.65

Finding the Fourth Proportional to 89,441.78, 134,154.41 and 30,270.65

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Solution

The fourth proportional to 89,441.78, 134,154.41 and 30,270.65 is: 45,403.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,441.78 : 134,154.41 = 30,270.65 : x
  2. Step 2: Convert to fraction form
    89,441.78/134,154.41 = 30,270.65/x
  3. Step 3: Cross multiply
    89,441.78x = 134,154.41 × 30,270.65
  4. Step 4: Simplify right side
    89,441.78x = 4,060,940,368.94
  5. Step 5: Solve for x
    x = 4,060,940,368.94/89,441.78
  6. Step 6: Final answer
    x = 45,403.17

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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.