Home / 75,183.80-103,754.04-42,478.36

Finding the Fourth Proportional to 75,183.80, 103,754.04 and 42,478.36

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Solution

The fourth proportional to 75,183.80, 103,754.04 and 42,478.36 is: 58,620.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,183.80 : 103,754.04 = 42,478.36 : x
  2. Step 2: Convert to fraction form
    75,183.80/103,754.04 = 42,478.36/x
  3. Step 3: Cross multiply
    75,183.80x = 103,754.04 × 42,478.36
  4. Step 4: Simplify right side
    75,183.80x = 4,407,301,462.57
  5. Step 5: Solve for x
    x = 4,407,301,462.57/75,183.80
  6. Step 6: Final answer
    x = 58,620.36

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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.