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Finding the Fourth Proportional to 45,599.78, 68,398.86 and 14,435.12

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Solution

The fourth proportional to 45,599.78, 68,398.86 and 14,435.12 is: 21,652.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,599.78 : 68,398.86 = 14,435.12 : x
  2. Step 2: Convert to fraction form
    45,599.78/68,398.86 = 14,435.12/x
  3. Step 3: Cross multiply
    45,599.78x = 68,398.86 × 14,435.12
  4. Step 4: Simplify right side
    45,599.78x = 987,345,751.96
  5. Step 5: Solve for x
    x = 987,345,751.96/45,599.78
  6. Step 6: Final answer
    x = 21,652.42

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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.