Home / 45,825.40-68,738.10-14,235.40

Finding the Fourth Proportional to 45,825.40, 68,738.10 and 14,235.40

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Solution

The fourth proportional to 45,825.40, 68,738.10 and 14,235.40 is: 21,353.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,825.40 : 68,738.10 = 14,235.40 : x
  2. Step 2: Convert to fraction form
    45,825.40/68,738.10 = 14,235.40/x
  3. Step 3: Cross multiply
    45,825.40x = 68,738.10 × 14,235.40
  4. Step 4: Simplify right side
    45,825.40x = 978,514,348.74
  5. Step 5: Solve for x
    x = 978,514,348.74/45,825.40
  6. Step 6: Final answer
    x = 21,353.10

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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.