Home / 56,742.97-78,302.46-31,251.54

Finding the Fourth Proportional to 56,742.97, 78,302.46 and 31,251.54

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Solution

The fourth proportional to 56,742.97, 78,302.46 and 31,251.54 is: 43,125.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,742.97 : 78,302.46 = 31,251.54 : x
  2. Step 2: Convert to fraction form
    56,742.97/78,302.46 = 31,251.54/x
  3. Step 3: Cross multiply
    56,742.97x = 78,302.46 × 31,251.54
  4. Step 4: Simplify right side
    56,742.97x = 2,447,072,069.28
  5. Step 5: Solve for x
    x = 2,447,072,069.28/56,742.97
  6. Step 6: Final answer
    x = 43,125.56

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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.