Home / 45,825.80-68,748.51-14,235.20

Finding the Fourth Proportional to 45,825.80, 68,748.51 and 14,235.20

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Solution

The fourth proportional to 45,825.80, 68,748.51 and 14,235.20 is: 21,355.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,825.80 : 68,748.51 = 14,235.20 : x
  2. Step 2: Convert to fraction form
    45,825.80/68,748.51 = 14,235.20/x
  3. Step 3: Cross multiply
    45,825.80x = 68,748.51 × 14,235.20
  4. Step 4: Simplify right side
    45,825.80x = 978,648,789.55
  5. Step 5: Solve for x
    x = 978,648,789.55/45,825.80
  6. Step 6: Final answer
    x = 21,355.85

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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.