Home / 57,160.56-78,880.44-31,668.66

Finding the Fourth Proportional to 57,160.56, 78,880.44 and 31,668.66

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Solution

The fourth proportional to 57,160.56, 78,880.44 and 31,668.66 is: 43,702.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,160.56 : 78,880.44 = 31,668.66 : x
  2. Step 2: Convert to fraction form
    57,160.56/78,880.44 = 31,668.66/x
  3. Step 3: Cross multiply
    57,160.56x = 78,880.44 × 31,668.66
  4. Step 4: Simplify right side
    57,160.56x = 2,498,037,835.01
  5. Step 5: Solve for x
    x = 2,498,037,835.01/57,160.56
  6. Step 6: Final answer
    x = 43,702.12

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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.