Home / 51,135.20-70,569.84-30,993.92

Finding the Fourth Proportional to 51,135.20, 70,569.84 and 30,993.92

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Solution

The fourth proportional to 51,135.20, 70,569.84 and 30,993.92 is: 42,773.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,135.20 : 70,569.84 = 30,993.92 : x
  2. Step 2: Convert to fraction form
    51,135.20/70,569.84 = 30,993.92/x
  3. Step 3: Cross multiply
    51,135.20x = 70,569.84 × 30,993.92
  4. Step 4: Simplify right side
    51,135.20x = 2,187,235,975.37
  5. Step 5: Solve for x
    x = 2,187,235,975.37/51,135.20
  6. Step 6: Final answer
    x = 42,773.59

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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.