Home / 74,933.20-112,399.80-45,335.80

Finding the Fourth Proportional to 74,933.20, 112,399.80 and 45,335.80

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Solution

The fourth proportional to 74,933.20, 112,399.80 and 45,335.80 is: 68,003.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,933.20 : 112,399.80 = 45,335.80 : x
  2. Step 2: Convert to fraction form
    74,933.20/112,399.80 = 45,335.80/x
  3. Step 3: Cross multiply
    74,933.20x = 112,399.80 × 45,335.80
  4. Step 4: Simplify right side
    74,933.20x = 5,095,734,852.84
  5. Step 5: Solve for x
    x = 5,095,734,852.84/74,933.20
  6. Step 6: Final answer
    x = 68,003.70

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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.