Home / 68,816.34-103,224.69-18,897.12

Finding the Fourth Proportional to 68,816.34, 103,224.69 and 18,897.12

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Solution

The fourth proportional to 68,816.34, 103,224.69 and 18,897.12 is: 28,345.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,816.34 : 103,224.69 = 18,897.12 : x
  2. Step 2: Convert to fraction form
    68,816.34/103,224.69 = 18,897.12/x
  3. Step 3: Cross multiply
    68,816.34x = 103,224.69 × 18,897.12
  4. Step 4: Simplify right side
    68,816.34x = 1,950,649,353.89
  5. Step 5: Solve for x
    x = 1,950,649,353.89/68,816.34
  6. Step 6: Final answer
    x = 28,345.73

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1.5x scale

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.