Home / 55,777.21-76,972.13-30,283.08

Finding the Fourth Proportional to 55,777.21, 76,972.13 and 30,283.08

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Solution

The fourth proportional to 55,777.21, 76,972.13 and 30,283.08 is: 41,790.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,777.21 : 76,972.13 = 30,283.08 : x
  2. Step 2: Convert to fraction form
    55,777.21/76,972.13 = 30,283.08/x
  3. Step 3: Cross multiply
    55,777.21x = 76,972.13 × 30,283.08
  4. Step 4: Simplify right side
    55,777.21x = 2,330,952,973.60
  5. Step 5: Solve for x
    x = 2,330,952,973.60/55,777.21
  6. Step 6: Final answer
    x = 41,790.42

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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.