Home / 57,128.08-78,833.40-31,633.02

Finding the Fourth Proportional to 57,128.08, 78,833.40 and 31,633.02

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Solution

The fourth proportional to 57,128.08, 78,833.40 and 31,633.02 is: 43,651.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,128.08 : 78,833.40 = 31,633.02 : x
  2. Step 2: Convert to fraction form
    57,128.08/78,833.40 = 31,633.02/x
  3. Step 3: Cross multiply
    57,128.08x = 78,833.40 × 31,633.02
  4. Step 4: Simplify right side
    57,128.08x = 2,493,738,518.87
  5. Step 5: Solve for x
    x = 2,493,738,518.87/57,128.08
  6. Step 6: Final answer
    x = 43,651.71

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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.