Home / 64,431.74-88,920.24-36,139.26

Finding the Fourth Proportional to 64,431.74, 88,920.24 and 36,139.26

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Solution

The fourth proportional to 64,431.74, 88,920.24 and 36,139.26 is: 49,874.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,431.74 : 88,920.24 = 36,139.26 : x
  2. Step 2: Convert to fraction form
    64,431.74/88,920.24 = 36,139.26/x
  3. Step 3: Cross multiply
    64,431.74x = 88,920.24 × 36,139.26
  4. Step 4: Simplify right side
    64,431.74x = 3,213,511,672.62
  5. Step 5: Solve for x
    x = 3,213,511,672.62/64,431.74
  6. Step 6: Final answer
    x = 49,874.67

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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.