Home / 47,742.78-71,589.57-21,424.97

Finding the Fourth Proportional to 47,742.78, 71,589.57 and 21,424.97

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Solution

The fourth proportional to 47,742.78, 71,589.57 and 21,424.97 is: 32,126.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,742.78 : 71,589.57 = 21,424.97 : x
  2. Step 2: Convert to fraction form
    47,742.78/71,589.57 = 21,424.97/x
  3. Step 3: Cross multiply
    47,742.78x = 71,589.57 × 21,424.97
  4. Step 4: Simplify right side
    47,742.78x = 1,533,804,031.62
  5. Step 5: Solve for x
    x = 1,533,804,031.62/47,742.78
  6. Step 6: Final answer
    x = 32,126.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.