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Finding the Fourth Proportional to 75,030.70, 103,551.30 and 43,205.80

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Solution

The fourth proportional to 75,030.70, 103,551.30 and 43,205.80 is: 59,629.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,030.70 : 103,551.30 = 43,205.80 : x
  2. Step 2: Convert to fraction form
    75,030.70/103,551.30 = 43,205.80/x
  3. Step 3: Cross multiply
    75,030.70x = 103,551.30 × 43,205.80
  4. Step 4: Simplify right side
    75,030.70x = 4,474,016,757.54
  5. Step 5: Solve for x
    x = 4,474,016,757.54/75,030.70
  6. Step 6: Final answer
    x = 59,629.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.