Home / 66,310.28-99,429.07-26,288.72

Finding the Fourth Proportional to 66,310.28, 99,429.07 and 26,288.72

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Solution

The fourth proportional to 66,310.28, 99,429.07 and 26,288.72 is: 39,418.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,310.28 : 99,429.07 = 26,288.72 : x
  2. Step 2: Convert to fraction form
    66,310.28/99,429.07 = 26,288.72/x
  3. Step 3: Cross multiply
    66,310.28x = 99,429.07 × 26,288.72
  4. Step 4: Simplify right side
    66,310.28x = 2,613,862,840.37
  5. Step 5: Solve for x
    x = 2,613,862,840.37/66,310.28
  6. Step 6: Final answer
    x = 39,418.67

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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.