Home / 71,751.04-107,622.88-21,830.96

Finding the Fourth Proportional to 71,751.04, 107,622.88 and 21,830.96

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Solution

The fourth proportional to 71,751.04, 107,622.88 and 21,830.96 is: 32,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,751.04 : 107,622.88 = 21,830.96 : x
  2. Step 2: Convert to fraction form
    71,751.04/107,622.88 = 21,830.96/x
  3. Step 3: Cross multiply
    71,751.04x = 107,622.88 × 21,830.96
  4. Step 4: Simplify right side
    71,751.04x = 2,349,510,788.36
  5. Step 5: Solve for x
    x = 2,349,510,788.36/71,751.04
  6. Step 6: Final answer
    x = 32,745.32

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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.