Home / 89,389.20-134,044.20-30,208.80

Finding the Fourth Proportional to 89,389.20, 134,044.20 and 30,208.80

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Solution

The fourth proportional to 89,389.20, 134,044.20 and 30,208.80 is: 45,299.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,389.20 : 134,044.20 = 30,208.80 : x
  2. Step 2: Convert to fraction form
    89,389.20/134,044.20 = 30,208.80/x
  3. Step 3: Cross multiply
    89,389.20x = 134,044.20 × 30,208.80
  4. Step 4: Simplify right side
    89,389.20x = 4,049,314,428.96
  5. Step 5: Solve for x
    x = 4,049,314,428.96/89,389.20
  6. Step 6: Final answer
    x = 45,299.82

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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.