Home / 89,306.28-133,866.27-30,121.61

Finding the Fourth Proportional to 89,306.28, 133,866.27 and 30,121.61

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Solution

The fourth proportional to 89,306.28, 133,866.27 and 30,121.61 is: 45,150.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,306.28 : 133,866.27 = 30,121.61 : x
  2. Step 2: Convert to fraction form
    89,306.28/133,866.27 = 30,121.61/x
  3. Step 3: Cross multiply
    89,306.28x = 133,866.27 × 30,121.61
  4. Step 4: Simplify right side
    89,306.28x = 4,032,266,907.76
  5. Step 5: Solve for x
    x = 4,032,266,907.76/89,306.28
  6. Step 6: Final answer
    x = 45,150.99

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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.