Home / 51,569.52-71,178.84-31,686

Finding the Fourth Proportional to 51,569.52, 71,178.84 and 31,686

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Solution

The fourth proportional to 51,569.52, 71,178.84 and 31,686 is: 43,734.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,569.52 : 71,178.84 = 31,686 : x
  2. Step 2: Convert to fraction form
    51,569.52/71,178.84 = 31,686/x
  3. Step 3: Cross multiply
    51,569.52x = 71,178.84 × 31,686
  4. Step 4: Simplify right side
    51,569.52x = 2,255,372,724.24
  5. Step 5: Solve for x
    x = 2,255,372,724.24/51,569.52
  6. Step 6: Final answer
    x = 43,734.61

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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.