Home / 89,516.40-134,310.96-45,156

Finding the Fourth Proportional to 89,516.40, 134,310.96 and 45,156

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Solution

The fourth proportional to 89,516.40, 134,310.96 and 45,156 is: 67,752.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,516.40 : 134,310.96 = 45,156 : x
  2. Step 2: Convert to fraction form
    89,516.40/134,310.96 = 45,156/x
  3. Step 3: Cross multiply
    89,516.40x = 134,310.96 × 45,156
  4. Step 4: Simplify right side
    89,516.40x = 6,064,945,709.76
  5. Step 5: Solve for x
    x = 6,064,945,709.76/89,516.40
  6. Step 6: Final answer
    x = 67,752.34

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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.