Home / 51,721.39-71,383.24-31,589.85

Finding the Fourth Proportional to 51,721.39, 71,383.24 and 31,589.85

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Solution

The fourth proportional to 51,721.39, 71,383.24 and 31,589.85 is: 43,598.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,721.39 : 71,383.24 = 31,589.85 : x
  2. Step 2: Convert to fraction form
    51,721.39/71,383.24 = 31,589.85/x
  3. Step 3: Cross multiply
    51,721.39x = 71,383.24 × 31,589.85
  4. Step 4: Simplify right side
    51,721.39x = 2,254,985,844.11
  5. Step 5: Solve for x
    x = 2,254,985,844.11/51,721.39
  6. Step 6: Final answer
    x = 43,598.71

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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.