Home / 81,108.78-121,663.46-24,948.51

Finding the Fourth Proportional to 81,108.78, 121,663.46 and 24,948.51

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Solution

The fourth proportional to 81,108.78, 121,663.46 and 24,948.51 is: 37,422.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,108.78 : 121,663.46 = 24,948.51 : x
  2. Step 2: Convert to fraction form
    81,108.78/121,663.46 = 24,948.51/x
  3. Step 3: Cross multiply
    81,108.78x = 121,663.46 × 24,948.51
  4. Step 4: Simplify right side
    81,108.78x = 3,035,322,048.44
  5. Step 5: Solve for x
    x = 3,035,322,048.44/81,108.78
  6. Step 6: Final answer
    x = 37,422.85

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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.