Home / 54,529.41-81,760.63-21,210.64

Finding the Fourth Proportional to 54,529.41, 81,760.63 and 21,210.64

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Solution

The fourth proportional to 54,529.41, 81,760.63 and 21,210.64 is: 31,802.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,529.41 : 81,760.63 = 21,210.64 : x
  2. Step 2: Convert to fraction form
    54,529.41/81,760.63 = 21,210.64/x
  3. Step 3: Cross multiply
    54,529.41x = 81,760.63 × 21,210.64
  4. Step 4: Simplify right side
    54,529.41x = 1,734,195,289.10
  5. Step 5: Solve for x
    x = 1,734,195,289.10/54,529.41
  6. Step 6: Final answer
    x = 31,802.94

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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.