Home / 75,534.36-104,141.10-47,229.72

Finding the Fourth Proportional to 75,534.36, 104,141.10 and 47,229.72

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Solution

The fourth proportional to 75,534.36, 104,141.10 and 47,229.72 is: 65,116.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,534.36 : 104,141.10 = 47,229.72 : x
  2. Step 2: Convert to fraction form
    75,534.36/104,141.10 = 47,229.72/x
  3. Step 3: Cross multiply
    75,534.36x = 104,141.10 × 47,229.72
  4. Step 4: Simplify right side
    75,534.36x = 4,918,554,993.49
  5. Step 5: Solve for x
    x = 4,918,554,993.49/75,534.36
  6. Step 6: Final answer
    x = 65,116.79

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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.