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Finding the Fourth Proportional to 45,434.56, 68,046 and 43,858.12

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Solution

The fourth proportional to 45,434.56, 68,046 and 43,858.12 is: 65,685.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,434.56 : 68,046 = 43,858.12 : x
  2. Step 2: Convert to fraction form
    45,434.56/68,046 = 43,858.12/x
  3. Step 3: Cross multiply
    45,434.56x = 68,046 × 43,858.12
  4. Step 4: Simplify right side
    45,434.56x = 2,984,369,633.52
  5. Step 5: Solve for x
    x = 2,984,369,633.52/45,434.56
  6. Step 6: Final answer
    x = 65,685.01

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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.