Home / 57,896.57-79,897.26-31,400.57

Finding the Fourth Proportional to 57,896.57, 79,897.26 and 31,400.57

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Solution

The fourth proportional to 57,896.57, 79,897.26 and 31,400.57 is: 43,332.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,896.57 : 79,897.26 = 31,400.57 : x
  2. Step 2: Convert to fraction form
    57,896.57/79,897.26 = 31,400.57/x
  3. Step 3: Cross multiply
    57,896.57x = 79,897.26 × 31,400.57
  4. Step 4: Simplify right side
    57,896.57x = 2,508,819,105.95
  5. Step 5: Solve for x
    x = 2,508,819,105.95/57,896.57
  6. Step 6: Final answer
    x = 43,332.78

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1.5x scale

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.