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Finding the Fourth Proportional to 45,433.78, 68,045.37 and 43,857.93

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Solution

The fourth proportional to 45,433.78, 68,045.37 and 43,857.93 is: 65,685.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,433.78 : 68,045.37 = 43,857.93 : x
  2. Step 2: Convert to fraction form
    45,433.78/68,045.37 = 43,857.93/x
  3. Step 3: Cross multiply
    45,433.78x = 68,045.37 × 43,857.93
  4. Step 4: Simplify right side
    45,433.78x = 2,984,329,074.28
  5. Step 5: Solve for x
    x = 2,984,329,074.28/45,433.78
  6. Step 6: Final answer
    x = 65,685.25

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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.