Home / 64,806.24-89,379.72-54,417.90

Finding the Fourth Proportional to 64,806.24, 89,379.72 and 54,417.90

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Solution

The fourth proportional to 64,806.24, 89,379.72 and 54,417.90 is: 75,052.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,806.24 : 89,379.72 = 54,417.90 : x
  2. Step 2: Convert to fraction form
    64,806.24/89,379.72 = 54,417.90/x
  3. Step 3: Cross multiply
    64,806.24x = 89,379.72 × 54,417.90
  4. Step 4: Simplify right side
    64,806.24x = 4,863,856,664.99
  5. Step 5: Solve for x
    x = 4,863,856,664.99/64,806.24
  6. Step 6: Final answer
    x = 75,052.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.