Home / 55,772.43-76,966.05-30,278.80

Finding the Fourth Proportional to 55,772.43, 76,966.05 and 30,278.80

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Solution

The fourth proportional to 55,772.43, 76,966.05 and 30,278.80 is: 41,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,772.43 : 76,966.05 = 30,278.80 : x
  2. Step 2: Convert to fraction form
    55,772.43/76,966.05 = 30,278.80/x
  3. Step 3: Cross multiply
    55,772.43x = 76,966.05 × 30,278.80
  4. Step 4: Simplify right side
    55,772.43x = 2,330,439,241.24
  5. Step 5: Solve for x
    x = 2,330,439,241.24/55,772.43
  6. Step 6: Final answer
    x = 41,784.79

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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.