Home / 56,481.76-77,954.16-31,339.36

Finding the Fourth Proportional to 56,481.76, 77,954.16 and 31,339.36

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Solution

The fourth proportional to 56,481.76, 77,954.16 and 31,339.36 is: 43,253.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,481.76 : 77,954.16 = 31,339.36 : x
  2. Step 2: Convert to fraction form
    56,481.76/77,954.16 = 31,339.36/x
  3. Step 3: Cross multiply
    56,481.76x = 77,954.16 × 31,339.36
  4. Step 4: Simplify right side
    56,481.76x = 2,443,033,483.74
  5. Step 5: Solve for x
    x = 2,443,033,483.74/56,481.76
  6. Step 6: Final answer
    x = 43,253.49

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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.