Home / 57,029.52-78,700.47-31,879.02

Finding the Fourth Proportional to 57,029.52, 78,700.47 and 31,879.02

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Solution

The fourth proportional to 57,029.52, 78,700.47 and 31,879.02 is: 43,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,029.52 : 78,700.47 = 31,879.02 : x
  2. Step 2: Convert to fraction form
    57,029.52/78,700.47 = 31,879.02/x
  3. Step 3: Cross multiply
    57,029.52x = 78,700.47 × 31,879.02
  4. Step 4: Simplify right side
    57,029.52x = 2,508,893,857.14
  5. Step 5: Solve for x
    x = 2,508,893,857.14/57,029.52
  6. Step 6: Final answer
    x = 43,992.90

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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.