Home / 81,807.06-122,585.33-55,053.87

Finding the Fourth Proportional to 81,807.06, 122,585.33 and 55,053.87

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Solution

The fourth proportional to 81,807.06, 122,585.33 and 55,053.87 is: 82,496.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,807.06 : 122,585.33 = 55,053.87 : x
  2. Step 2: Convert to fraction form
    81,807.06/122,585.33 = 55,053.87/x
  3. Step 3: Cross multiply
    81,807.06x = 122,585.33 × 55,053.87
  4. Step 4: Simplify right side
    81,807.06x = 6,748,796,546.46
  5. Step 5: Solve for x
    x = 6,748,796,546.46/81,807.06
  6. Step 6: Final answer
    x = 82,496.51

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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.