Home / 51,569.78-71,172.77-31,432.97

Finding the Fourth Proportional to 51,569.78, 71,172.77 and 31,432.97

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Solution

The fourth proportional to 51,569.78, 71,172.77 and 31,432.97 is: 43,381.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,569.78 : 71,172.77 = 31,432.97 : x
  2. Step 2: Convert to fraction form
    51,569.78/71,172.77 = 31,432.97/x
  3. Step 3: Cross multiply
    51,569.78x = 71,172.77 × 31,432.97
  4. Step 4: Simplify right side
    51,569.78x = 2,237,171,031.20
  5. Step 5: Solve for x
    x = 2,237,171,031.20/51,569.78
  6. Step 6: Final answer
    x = 43,381.44

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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.