Home / 89,869.91-134,786.40-42,464.86

Finding the Fourth Proportional to 89,869.91, 134,786.40 and 42,464.86

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Solution

The fourth proportional to 89,869.91, 134,786.40 and 42,464.86 is: 63,688.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,869.91 : 134,786.40 = 42,464.86 : x
  2. Step 2: Convert to fraction form
    89,869.91/134,786.40 = 42,464.86/x
  3. Step 3: Cross multiply
    89,869.91x = 134,786.40 × 42,464.86
  4. Step 4: Simplify right side
    89,869.91x = 5,723,685,467.99
  5. Step 5: Solve for x
    x = 5,723,685,467.99/89,869.91
  6. Step 6: Final answer
    x = 63,688.57

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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.