Home / 81,006.66-121,495.97-36,623.10

Finding the Fourth Proportional to 81,006.66, 121,495.97 and 36,623.10

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Solution

The fourth proportional to 81,006.66, 121,495.97 and 36,623.10 is: 54,928.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,006.66 : 121,495.97 = 36,623.10 : x
  2. Step 2: Convert to fraction form
    81,006.66/121,495.97 = 36,623.10/x
  3. Step 3: Cross multiply
    81,006.66x = 121,495.97 × 36,623.10
  4. Step 4: Simplify right side
    81,006.66x = 4,449,558,875.79
  5. Step 5: Solve for x
    x = 4,449,558,875.79/81,006.66
  6. Step 6: Final answer
    x = 54,928.31

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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.