Home / 57,123.80-78,833.30-31,630.16

Finding the Fourth Proportional to 57,123.80, 78,833.30 and 31,630.16

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Solution

The fourth proportional to 57,123.80, 78,833.30 and 31,630.16 is: 43,650.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,123.80 : 78,833.30 = 31,630.16 : x
  2. Step 2: Convert to fraction form
    57,123.80/78,833.30 = 31,630.16/x
  3. Step 3: Cross multiply
    57,123.80x = 78,833.30 × 31,630.16
  4. Step 4: Simplify right side
    57,123.80x = 2,493,509,340.01
  5. Step 5: Solve for x
    x = 2,493,509,340.01/57,123.80
  6. Step 6: Final answer
    x = 43,650.97

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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.