Home / 57,280.58-79,047.03-31,790.79

Finding the Fourth Proportional to 57,280.58, 79,047.03 and 31,790.79

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Solution

The fourth proportional to 57,280.58, 79,047.03 and 31,790.79 is: 43,871.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,280.58 : 79,047.03 = 31,790.79 : x
  2. Step 2: Convert to fraction form
    57,280.58/79,047.03 = 31,790.79/x
  3. Step 3: Cross multiply
    57,280.58x = 79,047.03 × 31,790.79
  4. Step 4: Simplify right side
    57,280.58x = 2,512,967,530.85
  5. Step 5: Solve for x
    x = 2,512,967,530.85/57,280.58
  6. Step 6: Final answer
    x = 43,871.20

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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.